--- tronrealm.old/thegrid/init.lua
+++ tronrealm/thegrid/init.lua
@@ -5,12 +5,12 @@
 
 -- Parameters
 
-local YMIN = 5000 -- Approximate base of realm
-local YMAX = 9000 -- Approximate top of atmosphere
-local TERCEN = 7000 -- Terrain centre y, average surface level
-local TERSCA = 128 -- Terrain scale in nodes, controls height of mountains
-local BLEND = 40 -- Flat to rough blend distance in nodes
-local FLATRAD = 345 -- Flat area radius in nodes
+local YMIN    = 5000 -- Approximate base of realm
+local TERCEN  = 5500 -- Terrain centre y, average surface level
+local YMAX    = 6000 -- Approximate top of atmosphere
+local TERSCA  =   64 -- Terrain scale in nodes, controls height of mountains
+local BLEND   =   40 -- Flat to rough blend distance in nodes
+local FLATRAD =  345 -- Flat area radius in nodes
 
 -- White grid limits in units of chunk (chunk = 80 nodes)
 local WXMIN = -3
--- tronrealm.old/tronblocks/depends.txt
+++ tronrealm/tronblocks/depends.txt
@@ -1,2 +1,3 @@
 default
 dye
+moreblocks
--- tronrealm.old/tronportal/init.lua
+++ tronrealm/tronportal/init.lua
@@ -315,6 +315,7 @@
 	end,
 })
 
+if false then
 minetest.register_craftitem(":tronportal:bit", {
 	description = "Bit",
 	inventory_image = "tronportal_bit.png",
@@ -328,6 +329,7 @@
 		return stack
 	end,
 })
+end
 
 -- dye recipes "hacks"
 minetest.register_craft({
--- tronrealm.old/tronportal/init.lua
+++ tronrealm/tronportal/init.lua
@@ -381,13 +381,12 @@
 			clust_scarcity = 1,
 			clust_num_ores = 1,
 			clust_size     = 1,
-			height_min     = 5000,
-			height_max     = 7000,
+			y_min          = 5000,
+			y_max          = 7000,
 		})
 	end
 end
 
-
 	minetest.register_ore({
 	ore_type       = "scatter",
 	ore            = "tronblocks:glow_box",
@@ -395,8 +394,8 @@
 	clust_scarcity = 17*17*17,
 	clust_num_ores = 5,
 	clust_size     = 3,
-	height_min     = 5000,
-	height_max     = 7000,
+	y_min          = 5000,
+	y_max          = 7000,
 })
 	minetest.register_ore({
 	ore_type       = "scatter",
@@ -405,8 +404,8 @@
 	clust_scarcity = 17*17*17,
 	clust_num_ores = 5,
 	clust_size     = 3,
-	height_min     = 5000,
-	height_max     = 7000,
+	y_min          = 5000,
+	y_max          = 7000,
 })
 	minetest.register_ore({
 	ore_type       = "scatter",
@@ -415,8 +414,8 @@
 	clust_scarcity = 17*17*17,
 	clust_num_ores = 5,
 	clust_size     = 3,
-	height_min     = 5000,
-	height_max     = 7000,
+	y_min          = 5000,
+	y_max          = 7000,
 })
 	minetest.register_ore({
 	ore_type       = "scatter",
@@ -425,7 +424,6 @@
 	clust_scarcity = 17*17*17,
 	clust_num_ores = 5,
 	clust_size     = 3,
-	height_min     = 5000,
-	height_max     = 7000,
+	y_min          = 5000,
+	y_max          = 7000,
 })
-
--- tronrealm.old/tronblocks/init.lua
+++ tronrealm/tronblocks/init.lua
@@ -7,5 +7,12 @@
 dofile(minetest.get_modpath("tronblocks").."/crafting.lua") --craft recipes.
 dofile(minetest.get_modpath("tronblocks").."/noderegister.lua") --node registry.
 
---support for moreblocks circular saw
-if minetest.get_modpath("moreblocks") then dofile(minetest.get_modpath("tronblocks").."/sawsupport.lua") end
+local                            enable_tronrealm_fullset =
+      minetest.setting_getbool ("enable_tronrealm_fullset" )
+
+-- support for moreblocks circular saw
+
+if  enable_tronrealm_fullset and
+    minetest.get_modpath ("moreblocks") then
+        dofile (minetest.get_modpath ("tronblocks") .. "/sawsupport.lua")
+end
--- tronrealm.old/tronblocks/noderegister.lua
+++ tronrealm/tronblocks/noderegister.lua
@@ -818,7 +818,7 @@
 	description = ("Tron Glass"),
 	drawtype = "glasslike",
 	tiles = {"tronblocks_glass.png"},
-	inventory_image = minetest.inventorycube("tronblocks_glass.png"),
+	inventory_image = "tronblocks_glass.png" ,
 	paramtype = "light",
 	sunlight_propagates = true,
 	light_source = 11,
@@ -830,7 +830,7 @@
 	description = ("Orange Tron Glass"),
 	drawtype = "glasslike",
 	tiles = {"tronblocks_glass_orange.png"},
-	inventory_image = minetest.inventorycube("tronblocks_glass_orange.png"),
+	inventory_image = "tronblocks_glass_orange.png" ,
 	paramtype = "light",
 	sunlight_propagates = true,
 	light_source = 11,
@@ -842,7 +842,7 @@
 	description = ("Blue Tron Glass"),
 	drawtype = "glasslike",
 	tiles = {"tronblocks_glass_blue.png"},
-	inventory_image = minetest.inventorycube("tronblocks_glass_blue.png"),
+	inventory_image = "tronblocks_glass_blue.png" ,
 	paramtype = "light",
 	sunlight_propagates = true,
 	light_source = 11,
@@ -854,7 +854,7 @@
 	description = ("Green Tron Glass"),
 	drawtype = "glasslike",
 	tiles = {"tronblocks_glass_green.png"},
-	inventory_image = minetest.inventorycube("tronblocks_glass_green.png"),
+	inventory_image = "tronblocks_glass_green.png" ,
 	paramtype = "light",
 	sunlight_propagates = true,
 	light_source = 11,
@@ -862,4 +862,3 @@
 	groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3},
 	sounds = default.node_sound_glass_defaults(),
 })
-
--- tronrealm.old/tronblocks/crafting.lua
+++ tronrealm/tronblocks/crafting.lua
@@ -1,4 +1,5 @@
 --crafts
+if false then -- RJK
 minetest.register_craft({
   output = "tronblocks:stone 1",
   recipe = {
@@ -6,6 +7,8 @@
   {"default:stone",}
   }
 })
+end
+
 minetest.register_craft({
   output = "tronblocks:stone_black 1",
   recipe = {