I had snakes since the late 80's myself. I also prefer separate feeding tanks. You'll find a lot of people on here don't use that technique any more. Probably because they have so many. I use a separate tank to feed. Usually give 5 to 10 minutes after they've eaten to return them to their tank. I can not remember ever having a problem doing this way. So if you choose to feed in a separate tank, give them 15 minutes and put them back in their enclosure.And yes I used this method with boa constrictors also.