diff --git a/code/__HELPERS/text.dm b/code/__HELPERS/text.dm
index ead4290bfde..88c1be1a59d 100644
--- a/code/__HELPERS/text.dm
+++ b/code/__HELPERS/text.dm
@@ -340,15 +340,10 @@ var/list/binary = list("0","1")
 	for(var/i=1, i<=length, i++)
 		. += pick(characters)
 
-/proc/repeat_string(length, string="")
-	var/len = length(string)
-	if(!len)	return string
-	while(len<length)
-		string += string
-		len *= 2
-	if(len == length)
-		return string
-	return copytext(string, 1, length+1)
+/proc/repeat_string(times, string="")
+	. = ""
+	for(var/i=1, i<=times, i++)
+		. += string
 
 /proc/random_short_color()
 	return random_string(3, hex_characters)
diff --git a/code/game/dna.dm b/code/game/dna.dm
index 43bcc87bcfc..623d209e155 100644
--- a/code/game/dna.dm
+++ b/code/game/dna.dm
@@ -64,7 +64,7 @@
 		. += md5(character.real_name)
 		reg_dna[.] = real_name
 	else
-		. += repeat_string(DNA_UNIQUE_ENZYMES_LEN, "000")
+		. += repeat_string(DNA_UNIQUE_ENZYMES_LEN, "0")
 	return .
 
 /proc/hardset_dna(mob/living/carbon/owner, ui, se, real_name, mutantrace, blood_type)
@@ -238,7 +238,7 @@
 	for(var/i in good_se_blocks)	//good mutations
 		blocks[i] = (deconstruct_block(getblock(M.dna.struc_enzymes, i), GOOD_MUTATION_DIFFICULTY) == GOOD_MUTATION_DIFFICULTY)
 	for(var/i in op_se_blocks)		//Overpowered mutations...extra difficult to obtain
-		blocks[i] = (deconstruct_block(getblock(M.dna.struc_enzymes, i), OP_MUTATION_DIFFICULTY) == GOOD_MUTATION_DIFFICULTY)
+		blocks[i] = (deconstruct_block(getblock(M.dna.struc_enzymes, i), OP_MUTATION_DIFFICULTY) == OP_MUTATION_DIFFICULTY)
 	
 	if(blocks[NEARSIGHTEDBLOCK])
 		M.disabilities |= NEARSIGHTED
diff --git a/code/game/gamemodes/setupgame.dm b/code/game/gamemodes/setupgame.dm
index c38c18b7f90..ae0b63b7a8c 100644
--- a/code/game/gamemodes/setupgame.dm
+++ b/code/game/gamemodes/setupgame.dm
@@ -29,8 +29,8 @@
 	good_se_blocks = list(FIREBLOCK,XRAYBLOCK)
 	op_se_blocks = list(HULKBLOCK,TELEBLOCK)
 	
-	NULLED_SE = repeat_string(DNA_STRUC_ENZYMES_BLOCKS, "___")
-	NULLED_UI = repeat_string(DNA_UNI_IDENTITY_BLOCKS, "___")
+	NULLED_SE = repeat_string(DNA_STRUC_ENZYMES_BLOCKS, repeat_string(DNA_BLOCK_SIZE, "_"))
+	NULLED_UI = repeat_string(DNA_UNI_IDENTITY_BLOCKS, repeat_string(DNA_BLOCK_SIZE, "_"))
 	// HIDDEN MUTATIONS / SUPERPOWERS INITIALIZTION
 
 /*
diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index 2ac9286206b..a416da8adcc 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -34,7 +34,7 @@
 				if(ishuman(M) && (deconstruct_block(getblock(M.dna.struc_enzymes, RACEBLOCK), BAD_MUTATION_DIFFICULTY) == BAD_MUTATION_DIFFICULTY))	//check for monkeying people.
 					message_admins("[key_name_admin(user)] injected [key_name_admin(M)] with the [name] \red(MONKEY)")
 					log_msg += " (MONKEY)"
-				domutcheck(M, null)
+				domutcheck(M, null,(type != /obj/item/weapon/dnainjector))	//admin-spawnable-injectors always work
 			log_attack(log_msg)
 	else
 		user << "<span class='notice'>It appears that [M] does not have compatible DNA.</span>"
@@ -227,9 +227,6 @@
 /obj/item/weapon/dnainjector/telemut/darkbundle
 	name = "\improper DNA injector"
 	desc = "Good. Let the hate flow through you."
-/obj/item/weapon/dnainjector/telemut/darkbundle/attack(mob/M, mob/user)
-	..()
-	domutcheck(M,null) //guarantees that it works instead of getting a dud injector.
 
 /obj/item/weapon/dnainjector/deafmut
 	name = "\improper DNA injector (Deaf)"