Changes emp_vulnerability from the probably to the division of the emp severity. Higher is better.

code/modules/surgery/organs/stomach.dm

@@ -99,7 +99,7 @@
 	desc = "A basic device designed to mimic the functions of a human stomach"
 	organ_flags = ORGAN_SYNTHETIC
 	maxHealth = STANDARD_ORGAN_THRESHOLD * 0.5
-	var/emp_vulnerability = 80	//Chance of permanent effects if emp-ed.
+	var/emp_vulnerability = 1 //The value the severity of emps are divided by to determine the likelihood of permanent damage.
 
 /obj/item/organ/stomach/cybernetic/tier2
 	name = "cybernetic stomach"
@@ -107,7 +107,7 @@
 	desc = "An electronic device designed to mimic the functions of a human stomach. Handles disgusting food a bit better."
 	maxHealth = 1.5 * STANDARD_ORGAN_THRESHOLD
 	disgust_metabolism = 2
-	emp_vulnerability = 40
+	emp_vulnerability = 2
 
 /obj/item/organ/stomach/cybernetic/tier3
 	name = "upgraded cybernetic stomach"
@@ -115,7 +115,7 @@
 	desc = "An upgraded version of the cybernetic stomach, designed to improve further upon organic stomachs. Handles disgusting food very well."
 	maxHealth = 2 * STANDARD_ORGAN_THRESHOLD
 	disgust_metabolism = 3
-	emp_vulnerability = 20
+	emp_vulnerability = 3
 
 /obj/item/organ/stomach/cybernetic/emp_act(severity)
 	. = ..()
@@ -124,7 +124,7 @@
 	if(!COOLDOWN_FINISHED(src, severe_cooldown)) //So we cant just spam emp to kill people.
 		owner.vomit(stun = FALSE)
 		COOLDOWN_START(src, severe_cooldown, 10 SECONDS)
-	if(prob(emp_vulnerability/severity))	//Chance of permanent effects
+	if(prob(severity/emp_vulnerability))	//Chance of permanent effects
 		organ_flags |= ORGAN_SYNTHETIC_EMP //Starts organ faliure - gonna need replacing soon.
 
 /obj/item/organ/stomach/ipc