diff --git a/code/modules/movespeed/modifiers/innate.dm b/code/modules/movespeed/modifiers/innate.dm
index 94a3f7a2e79..83d8b3fb78d 100644
--- a/code/modules/movespeed/modifiers/innate.dm
+++ b/code/modules/movespeed/modifiers/innate.dm
@@ -7,11 +7,12 @@
 	flags = IGNORE_NOSLOW
 
 /datum/movespeed_modifier/snail
-	movetypes = ~FLYING
+	blacklisted_movetypes = FLYING
 	variable = TRUE
 
+// no reason for leg loss (or gain) to affect speed if drifting
 /datum/movespeed_modifier/bodypart
-	movetypes = ~FLYING
+	blacklisted_movetypes = (FLYING|FLOATING)
 	variable = TRUE
 
 /datum/movespeed_modifier/dna_vault_speedup
diff --git a/code/modules/movespeed/modifiers/mobs.dm b/code/modules/movespeed/modifiers/mobs.dm
index b72c631253b..1624ce37bf6 100644
--- a/code/modules/movespeed/modifiers/mobs.dm
+++ b/code/modules/movespeed/modifiers/mobs.dm
@@ -1,4 +1,5 @@
 /datum/movespeed_modifier/obesity
+	// large weight slows even if flying and floating
 	multiplicative_slowdown = 1.5
 
 /datum/movespeed_modifier/monkey_reagent_speedmod
@@ -11,6 +12,7 @@
 	variable = TRUE
 
 /datum/movespeed_modifier/hunger
+	movetypes = GROUND|FLYING
 	variable = TRUE
 
 /datum/movespeed_modifier/golem_hunger
@@ -89,7 +91,7 @@
 /datum/movespeed_modifier/limbless
 	variable = TRUE
 	movetypes = GROUND
-	blacklisted_movetypes = FLOATING
+	blacklisted_movetypes = FLOATING|FLYING
 	flags = IGNORE_NOSLOW
 
 /datum/movespeed_modifier/simplemob_varspeed