But they usually don't do live prey for their pythons, and I know that that can factor into it.
Feeding live has nothing to do with striking, you need to do a little more research about this as well.
Are you sure they aren't striking from anxiety of being in a small space? Or escaping because the enclosure is too small for them?
A BP are not more likely to bite or try to escape if place in a smaller enclosure.

If you own a snake long enough or you own enough of them sooner or later you will get tag.