diff --git a/code/modules/nifsoft/software/15_misc.dm b/code/modules/nifsoft/software/15_misc.dm
index 957924314d9..2b173346ce0 100644
--- a/code/modules/nifsoft/software/15_misc.dm
+++ b/code/modules/nifsoft/software/15_misc.dm
@@ -130,7 +130,8 @@
 		var/new_size = input("Put the desired size (25-200%), or (1-600%) in dormitory areas.", "Set Size", 200) as num|null
 
 		if (!nif.human.size_range_check(new_size))
-			to_chat(nif.human,"<span class='notice'>The safety features of the NIF Program prevent you from choosing this size.</span>")
+			if(new_size)
+				to_chat(nif.human,"<span class='notice'>The safety features of the NIF Program prevent you from choosing this size.</span>")
 			return
 		else
 			if(nif.human.resize(new_size/100))
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Vore_vr.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Vore_vr.dm
index b69eccf4028..3cf6276998e 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Vore_vr.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Vore_vr.dm
@@ -13,7 +13,7 @@
 	mrate_static = TRUE
 
 /datum/reagent/macrocillin/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	if(M.size_multiplier < RESIZE_HUGE)
+	if(M.size_range_check(M.size_multiplier))
 		M.resize(M.size_multiplier+0.01)//Incrrease 1% per tick.
 	return
 
@@ -27,7 +27,7 @@
 	mrate_static = TRUE
 
 /datum/reagent/microcillin/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	if(M.size_multiplier > RESIZE_TINY)
+	if(M.size_range_check(M.size_multiplier))
 		M.resize(M.size_multiplier-0.01) //Decrease 1% per tick.
 	return
 
diff --git a/code/modules/vore/resizing/resize_vr.dm b/code/modules/vore/resizing/resize_vr.dm
index 8075c8132bf..eb14ffb20eb 100644
--- a/code/modules/vore/resizing/resize_vr.dm
+++ b/code/modules/vore/resizing/resize_vr.dm
@@ -144,7 +144,7 @@ var/const/RESIZE_A_SMALLTINY = (RESIZE_SMALL + RESIZE_TINY) / 2
 
 	var/nagmessage = "Adjust your mass to be a size between 25 to 200% (or 1% to 600% in dormitories). (DO NOT ABUSE)"
 	var/new_size = input(nagmessage, "Pick a Size") as num|null
-	if(new_size && ISINRANGE(new_size, 25, 200))
+	if(size_range_check(new_size))
 		resize(new_size/100)
 		// I'm not entirely convinced that `src ? ADMIN_JMP(src) : "null"` here does anything
 		// but just in case it does, I'm leaving the null-src checking
diff --git a/code/modules/vore/resizing/sizegun_vr.dm b/code/modules/vore/resizing/sizegun_vr.dm
index b428337f163..e30c218fbb4 100644
--- a/code/modules/vore/resizing/sizegun_vr.dm
+++ b/code/modules/vore/resizing/sizegun_vr.dm
@@ -24,7 +24,10 @@
 
 /obj/item/weapon/gun/energy/sizegun/New()
 	..()
-	verbs += /obj/item/weapon/gun/energy/sizegun/proc/select_size
+	if(istype(src, /obj/item/weapon/gun/energy/sizegun/admin))
+		verbs += /obj/item/weapon/gun/energy/sizegun/admin/select_size
+	else
+		verbs += /obj/item/weapon/gun/energy/sizegun/proc/select_size
 
 /obj/item/weapon/gun/energy/sizegun/attack_self(mob/user)
 	. = ..()
@@ -65,7 +68,7 @@
 
 	var/size_select = input("Put the desired size", "Set Size", size_set_to * 100) as num
 	size_set_to = max(1,size_select/100)		//No negative numbers
-	to_chat(usr, "<span class='notice'>You set the size to [size_set_to]%</span>")
+	to_chat(usr, "<span class='notice'>You set the size to [size_select]%</span>")
 
 //
 // Beams for size gun