I also have three younger bloods that I had to tame down but even they are fed in their tub and always have been. I have never once been tagged by them in a feeding related way. The only times they have given me a bite is when they are being pissy about me disturbing them.
How did you tame down the young bloods? Just curious. Do you handle them until they chill out? I am a newbie w/ this breed...with snakes, in general.