I wouldn't suggest feeding her until she stops...BPs are opportunistic hunters and many times once they are in feeding mode, will just keep eating. My biggest girl (~1500 or 1600g) will get 3 mice in a sitting if they don't have rats (or if she is in a 'no rat' mood that she likes to go through every couple of months). I could probably give her more than that, and I know she can take it, but for one...it gets expensive!

If you girl is doing well on 5, keep it at 5. Just b/c she will keep eating, doesn't mean she needs to. If she still looks hungry after 5, she will probably still look hungry after 8 or whatever.