if it would be up to me i would make that you can fail to first aid too just like with doctor, and you should have more than 100% not to fail so in this case only doctors could heal and that would be allright :> Now doctor with 223 fa and 2 healer perks can heal for 26 hp (i was doctor with these stats so i know that), and sniper with 10 luck with his shitty 50 fa will always heal 50 :/ thats not fair.