diff --git a/Makefile b/Makefile
index 9b67a5e..8198055 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,10 @@ MAKEFLAGS += --no-builtin-variables
 
 default: F3DEX3_BrZ F3DEX3_BrW
 
+# The F3DEX3 version letter is incremented when there are major, GBI-breaking
+# changes. This goes in the microcode ID string so HLE can detect the version.
+VERSION = _B
+
 # List of all compile-time options supported by the microcode source.
 ALL_OPTIONS := \
   CFG_G_BRANCH_W \
@@ -175,7 +179,7 @@ $(eval $(call reset_vars))
 define rule_builder_final
   NAME := F3DEX3$(NAME_FINAL)
   DESCRIPTION := Will make you want to finally ditch HLE ($(OPTIONS_FINAL))
-  ID_STR := F3DEX3$(NAME_FINAL) by Sauraen & Yoshitaka Yasumoto/Nintendo
+  ID_STR := F3DEX3$(NAME_FINAL)$(VERSION) by Sauraen & Yoshitaka Yasumoto/Nintendo
   OPTIONS := $(OPTIONS_FINAL)
   $$(eval $$(call ucode_rule))
 endef
diff --git a/build.sh b/build.sh
index 1ff45fb..a045ddb 100644
--- a/build.sh
+++ b/build.sh
@@ -23,7 +23,7 @@ for ucode in "${UCODES[@]}"; do
     cp build/$ucode/$ucode.data ../../Mods/HackerOoT/data/F3DEX3/$ucode.data
 done
 
-make -C ../../Mods/HackerOoT -j12
+make -C ../../Mods/HackerOoT -j32
 #cp ../../Mods/HackerOoT/HackerOoT.z64 /media/`whoami`/SOME2/
 ../../Flashcarts/SummerCart64/sw/deployer/target/release/sc64deployer upload ../../Mods/HackerOoT/HackerOoT.z64
 printf "\n====\nDone\n====\n"
diff --git a/f3dex3.s b/f3dex3.s
index 7cc9ede..8060b1a 100644
--- a/f3dex3.s
+++ b/f3dex3.s
@@ -1315,10 +1315,10 @@ G_TRI1_handler:
     li      $ra, tris_end                // After done with this tri, exit tri processing
     sw      cmd_w0, rdpHalf1Val          // Store first tri indices
 tri_main:
-    lpv     $v27[4], 0(rdpHalf1Val)      // To vector unit in elems 5-7
-    lbu     $1, 1(rdpHalf1Val)
-    lbu     $2, 2(rdpHalf1Val)
-    lbu     $3, 3(rdpHalf1Val)
+    lpv     $v27[4], (rdpHalf1Val)($zero) // To vector unit in elems 5-7
+    lbu     $1, rdpHalf1Val + 1
+    lbu     $2, rdpHalf1Val + 2
+    lbu     $3, rdpHalf1Val + 3
     vclr    vZero
     lhu     $1, (vertexTable)($1)
     vmudn   $v29, vOne, vTRC_VB    // Address of vertex buffer
diff --git a/gbi.h b/gbi.h
index 28e2af2..bd7c23c 100644
--- a/gbi.h
+++ b/gbi.h
@@ -2679,12 +2679,16 @@ _DW({                                                                   \
 }
 
 /**
- * Make the triangle snake turn left before drawing this triangle.
+ * Make the triangle snake turn left before drawing this triangle. In other
+ * words, build the new triangle off the newest and middle-age vertices of the
+ * last triangle.
  * @see gSPTriSnake
  */
 #define G_SNAKE_LEFT  0
 /**
- * Make the triangle snake turn right before drawing this triangle.
+ * Make the triangle snake turn right before drawing this triangle. In other
+ * words, build the new triangle off the newest and oldest vertices of the last
+ * triangle.
  * @see gSPTriSnake
  */
 #define G_SNAKE_RIGHT 1