diff --git a/Makefile b/Makefile
index ef6621af..9e4cf496 100644
--- a/Makefile
+++ b/Makefile
@@ -303,10 +303,10 @@ $(BOOT_MIPS3_OBJS) : $(BUILD_DIR)/%.c.o : %.c | $(C_BUILD_DIRS)
 # Split baserom
 $(BUILD_DIR)/SPLAT_TIMESTAMP: decompressed.$(VERSION).yaml $(SYMBOL_ADDRS) | $(BUILD_DIR)
 	$(call print1,Splitting rom:,$<)
-	@touch $@
 	@$(SPLAT) decompressed.$(VERSION).yaml
+	@touch $@
 	@touch $(LD_SCRIPT)
-	sed -i '7s/.*/glabel D_80392D90\n .double 0.99999/' asm/nonmatchings/FP/code_5CC0/func_8038C428.s
+
 # Dummy target to make the LD script and overlay rzips depend on splat being run
 #   without causing it to be rerun once for every overlay
 # Bin files are also dependent on the splat timestamp since they get overwritten on resplit
diff --git a/decompressed.us.v10.yaml b/decompressed.us.v10.yaml
index b27db544..8b317acf 100644
--- a/decompressed.us.v10.yaml
+++ b/decompressed.us.v10.yaml
@@ -29,6 +29,7 @@ segments:
   type: code
   start: 0x0040
   vram: 0xA4000040
+  exclusive_ram_id: ipl3
   subsegments:
   - [0x0040, bin, ipl3]
   - [0x0B70, bin, ipl3font]
@@ -1546,6 +1547,7 @@ segments:
   type: code
   start: 0x01048560
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x1048560, c, code_0]
   - [0x1048A90, c, code_530] #Done
@@ -1576,6 +1578,7 @@ segments:
   type: code
   start: 0x0104C0E0
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x104C0E0, c, code_0]       #DONE
   - [0x104C310, c, code_230]   #DONE
@@ -1663,6 +1666,7 @@ segments:
   type: code
   start: 0x01057710
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x1057710, c, ch/loggo]  #DONE
   - [0x1057C80, c, ch/napper] #DONE
@@ -1703,6 +1707,7 @@ segments:
   type: code
   start: 0x0105D7E0
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x105D7E0, c, code_0]       #DONE
   - [0x105E880, c, code_10A0] #DONE
@@ -1741,6 +1746,7 @@ segments:
   type: code
   start: 0x01064AE0
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x1064AE0, c, ch/orangepad]
   - [0x1065050, c, ch/hut]
@@ -1776,6 +1782,7 @@ segments:
   type: code
   start: 0x01068370
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   # after: core2-data
   subsegments:
   - [0x1068370, c, ch/flibbit] #DONE
@@ -1832,6 +1839,7 @@ segments:
   type: code
   start: 0x010731B0
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x10731B0, c, code_0]
   - [0x10737F0, c, code_640]
@@ -1916,6 +1924,7 @@ segments:
   type: code
   start: 0x0107E030
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x107E030, c, code_0]       #DONE
   - [0x107E500, c, code_4D0]   #DONE
@@ -1985,6 +1994,7 @@ segments:
   type: code
   start: 0x0108AB50
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x108AB50, c, code_0]
   - [0x108AC40, c, code_F0]
@@ -2019,6 +2029,7 @@ segments:
   type: code
   start: 0x0108FA80
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x108FA80, c, code_0]
   - [0x1095B70, c, code_60F0] #DONE
@@ -2039,6 +2050,7 @@ segments:
   type: code
   start: 0x01098070
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x1098070, c, code_0] #DONE
   - [0x109C310, c, code_42A0] #DONE
@@ -2086,6 +2098,7 @@ segments:
   type: code
   start: 0x010A6FD0
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x10A6FD0, c, code_0] #DONE
   - [0x10A7150, c, chfinalboss] 
@@ -2127,6 +2140,7 @@ segments:
   type: code
   start: 0x010B3320
   vram: 0x803863F0
+  exclusive_ram_id: overlay
   subsegments:
   - [0x10B3320, c, code_0] #DONE
   - [0x10B3480, c, code_160] #DONE
diff --git a/symbol_addrs.global.us.v10.txt b/symbol_addrs.global.us.v10.txt
index a0b4fc07..d0201116 100644
--- a/symbol_addrs.global.us.v10.txt
+++ b/symbol_addrs.global.us.v10.txt
@@ -69,4 +69,5 @@ D_803907B0 = 0x803907B0;
 core2_TEXT_START = 0x80286F90;
 ml_min_w = 0x80258948;
 guLookAtReflect = 0x8024128C;
-D_80392D90 = 0x80392D90; // defined:false rom:0x108A9D0
\ No newline at end of file
+D_80392D90 = 0x80392D90; // defined:false rom:0x108A9D0
+lair_D_80392D90 = 0x80392D90; // defined:false rom:0x10A4A10
diff --git a/undefined_syms.us.v10.txt b/undefined_syms.us.v10.txt
index 4cf33dd3..7ff0bebc 100644
--- a/undefined_syms.us.v10.txt
+++ b/undefined_syms.us.v10.txt
@@ -13,7 +13,6 @@ D_8038D590 = 0x8038D590;
 D_8038D6DC = 0x8038D6DC;
 D_8038D844 = 0x8038D844;
 fight_D_80391A10 = 0x80391A10;
-D_80392D90 = 0x80392D90;
 FP_D_80392840 = 0x80392840;
 core1_D_803727F4 = 0x803727F4;
 __osBaseTimer = 0x80285D00;