diff --git a/PHI-CL/changelog.txt b/PHI-CL/changelog.txt
index 1c85b77..77b251a 100644
--- a/PHI-CL/changelog.txt
+++ b/PHI-CL/changelog.txt
@@ -9,6 +9,7 @@ Date: 2026-05-10
     - [MI] Removed train speed setting.
     - [MI] Removed robot speed setting.
     - [MI] Removed lab quality affect drain setting.
+    - [MI] Removed second underground belt set.
     - [SA] Now spoil freeze ratio equal to zero means it will be disabled.
 
 ---------------------------------------------------------------------------------------------------
diff --git a/PHI-CL/data-final-fixes.lua b/PHI-CL/data-final-fixes.lua
index 689b20b..4d4fc95 100644
--- a/PHI-CL/data-final-fixes.lua
+++ b/PHI-CL/data-final-fixes.lua
@@ -1,4 +1,4 @@
---[[
+
 do
     local sa = settings.startup['PHI-GM'].value and settings.startup['PHI-GM'].value == 'SAP'
     local p = (settings.startup['PHI-GM'].value and settings.startup['PHI-GM'].value == 'VP') or sa
@@ -46,4 +46,3 @@ if mods['space-age'] then
         end
     end
 end
-]]
\ No newline at end of file
diff --git a/PHI-CL/data-updates.lua b/PHI-CL/data-updates.lua
index 12f57b5..3eeb77c 100644
--- a/PHI-CL/data-updates.lua
+++ b/PHI-CL/data-updates.lua
@@ -13,8 +13,6 @@ if settings.startup['PHI-MB'].value then
     end
 end
 
---[[
 if (settings.startup['PHI-MI'].value and settings.startup['PHI-MI-GENERIC'].value) or (settings.startup['PHI-GM'].value and settings.startup['PHI-GM'].value ~= '') then
     require 'data.u.mi'
 end
-]]
\ No newline at end of file
diff --git a/PHI-CL/data.lua b/PHI-CL/data.lua
index 8b9b737..b9bd742 100644
--- a/PHI-CL/data.lua
+++ b/PHI-CL/data.lua
@@ -25,7 +25,6 @@ if (settings.startup['PHI-MI'].value and settings.startup['PHI-MI-GENERIC'].valu
     require('data.b.mig')
 end
 
---[[
 if mods['space-age'] then
     require('data.b.sa')
 
@@ -41,4 +40,3 @@ if settings.startup['PHI-GM'].value then
         require('data.b.gm-vp')
     end
 end
-]]
\ No newline at end of file
diff --git a/PHI-CL/data/b/mig.lua b/PHI-CL/data/b/mig.lua
index 45c5ffb..4f8721e 100644
--- a/PHI-CL/data/b/mig.lua
+++ b/PHI-CL/data/b/mig.lua
@@ -1,4 +1,3 @@
-local mod_graphic_location = '__PHI-CL__/graphics/'
 local mod_tint = {
     [2] = {r=140, g=142, b=200},
     [3] = {r=242, g=161, b=26},
@@ -163,11 +162,11 @@ for _, v in pairs(data.raw.fluid) do
             category = 'super-pump-fluid',
             energy_required = 1,
             enabled = false,
-            hidden = true,
             ingredients = {},
             results = {{type = 'fluid', name = v.name, amount = 12000, temperature = v.default_temperature or 15}},
             main_product = v.name,
             hide_from_player_crafting = true,
+            hidden = true,
             hidden_in_factoriopedia = true,
             allow_productivity = false,
             crafting_machine_tint = {primary = v.flow_color or {r = 255,g = 255,b = 255}},
@@ -203,7 +202,7 @@ for i = 1, #vir_sig do
     table.insert(s, {
         type = 'virtual-signal',
         name = 'signal-' .. char .. 'A',
-        icon = mod_graphic_location .. 'signal/signal_' .. char .. '.png',
+        icon = '__PHI-CL__/graphics/signal/signal_' .. char .. '.png',
         subgroup = (i < 11 and 'virtual-signal-number') or 'virtual-signal-letter',
         order = ((i < 11 and 'b[numbers]2-[') or 'c[letters]2-[') .. char .. ']',
         localised_name = {'phi-cl.combine', {'virtual-signal-name.signal-' .. char}, '(II)'}
@@ -437,68 +436,6 @@ for _, v in pairs({{'logistics', 'loader'}, {'logistics-2', 'fast-loader'}, {'lo
     end
 end
 
--- MIG A 3 BASE ENTITY,ITEM,RECIPE
--- MIG A 1 SPACE_AGE ENTITY,ITEM,RECIPE
-for _, vn in pairs(data.raw['underground-belt']) do
-    local v = vn.name
-    local va = v .. '-a'
-
-    if data.raw.item[v] then
-        local item = table.deepcopy(data.raw.item[v])
-        item.name = va
-        item.place_result = va
-        item.localised_name = {'phi-cl.combine', {'entity-name.' .. v}, '(II)'}
-        item.localised_description = {'entity-description.' .. v}
-        data:extend({item})
-    end
-
-    local entity = table.deepcopy(vn)
-    entity.name = va
-    entity.minable.result = va
-    entity.next_upgrade = (entity.next_upgrade and entity.next_upgrade .. '-a') or nil
-    entity.surface_conditions = nil
-    entity.localised_name = {'phi-cl.combine', {'entity-name.' .. v}, '(II)'}
-    entity.localised_description = {'entity-description.' .. v}
-
-    for _, st in pairs({'direction_in', 'direction_out', 'direction_in_side_loading', 'direction_out_side_loading'}) do
-        entity.structure[st].sheet.filename = mod_graphic_location .. v .. '.png'
-        entity.structure[st].sheet.width = 106
-        entity.structure[st].sheet.height = 85
-        entity.structure[st].sheet.shift = {0.15625, 0.0703125}
-    end
-
-    entity.structure.direction_in.sheet.y = 85
-    entity.structure.direction_out.sheet.y = nil
-    entity.structure.direction_in_side_loading.sheet.y = 85
-    entity.structure.direction_out_side_loading.sheet.y = nil
-    data:extend({entity})
-
-    data:extend({{
-        type = 'recipe',
-        name = va,
-        energy_required = 2,
-        enabled = false,
-        ingredients = {{type = 'item', name = v, amount = 2}},
-        results = {{type = 'item', name = va, amount = 2}},
-        main_product = va,
-        hide_from_player_crafting = true,
-        allow_productivity = false,
-        localised_name = {'phi-cl.combine', {'entity-name.' .. v}, '(II)'}
-    }})
-end
-
--- MIG A 3 BASE RESEARCH_EFFECT
--- MIG A 1 SPACE_AGE RESEARCH_EFFECT
-for _, v in pairs({{'logistics', 'underground-belt'}, {'logistics-2', 'fast-underground-belt'}, {'logistics-3', 'express-underground-belt'}, {'turbo-transport-belt', 'turbo-underground-belt'}}) do
-    if data.raw['underground-belt'] and data.raw['underground-belt'][v[2]] then
-        if data.raw.technology[v[1]] then
-            table.insert(data.raw.technology[v[1]].effects, {type = 'unlock-recipe', recipe = v[2] .. '-a'})
-        else
-            data.raw.recipe[v[2] .. '-a'].enabled = true
-        end
-    end
-end
-
 -- MIG C 1 BASE ENTITY
 if data.raw['proxy-container'] and data.raw['proxy-container']['proxy-container'] then
     data.raw['proxy-container']['proxy-container'].flags = {'not-blueprintable', 'hide-alt-info', 'not-deconstructable', 'not-flammable', 'not-on-map', 'placeable-off-grid', 'placeable-player', 'no-automated-item-insertion', 'no-automated-item-removal'}
diff --git a/PHI-CL/graphics/express-underground-belt.png b/PHI-CL/graphics/express-underground-belt.png
deleted file mode 100644
index e6ff200..0000000
Binary files a/PHI-CL/graphics/express-underground-belt.png and /dev/null differ
diff --git a/PHI-CL/graphics/fast-underground-belt.png b/PHI-CL/graphics/fast-underground-belt.png
deleted file mode 100644
index 2c62a03..0000000
Binary files a/PHI-CL/graphics/fast-underground-belt.png and /dev/null differ
diff --git a/PHI-CL/graphics/turbo-underground-belt.png b/PHI-CL/graphics/turbo-underground-belt.png
deleted file mode 100644
index 5a014cb..0000000
Binary files a/PHI-CL/graphics/turbo-underground-belt.png and /dev/null differ
diff --git a/PHI-CL/graphics/underground-belt.png b/PHI-CL/graphics/underground-belt.png
deleted file mode 100644
index d8526c7..0000000
Binary files a/PHI-CL/graphics/underground-belt.png and /dev/null differ
diff --git a/PHI-CL/migrations.lua b/PHI-CL/migrations.lua
index 4d023a8..f704c53 100644
--- a/PHI-CL/migrations.lua
+++ b/PHI-CL/migrations.lua
@@ -105,12 +105,10 @@ for _, force in pairs(game.forces) do
             recipes['electric-heating-tower'].reload()
         end
 
-        for _, v in pairs({{'logistics', 'underground-belt'}, {'logistics-2', 'fast-underground-belt'}, {'logistics-3', 'express-underground-belt'}, {'turbo-transport-belt', 'turbo-underground-belt'}, {'logistics', 'loader'}, {'logistics-2', 'fast-loader'}, {'logistics-3', 'express-loader'}, {'turbo-transport-belt', 'turbo-loader'}}) do
-            local vn = v[2] .. '-a'
-
-            if technologies[v[1]] and technologies[v[1]].researched and recipes[vn] then
-                recipes[vn].enabled = true
-                recipes[vn].reload()
+        for _, v in pairs({{'logistics', 'loader'}, {'logistics-2', 'fast-loader'}, {'logistics-3', 'express-loader'}, {'turbo-transport-belt', 'turbo-loader'}}) do
+            if technologies[v[1]] and technologies[v[1]].researched and recipes[v[2]] then
+                recipes[v[2]].enabled = true
+                recipes[v[2]].reload()
             end
         end
     end