Dude, your practice points and BH's have to be the same weight to even start fixing this. The arrows canbehave very differently when you change stuff.

45 grains is a pretty big change in how the arrow will react.
I've seen 1/4 turn of a limb bolt makea difference of 6" at 30 yards between field points and BH's.

Everything has to bee the same when you expand your tuning to BH's.

Good luck.