I have a HERMS rig. I mash at 1.2-1.5 qt/lb depending on style, then add mash out water to batch sparge with equal volumes between and mash and sparge. My mash out is a 5 min recycle at 170. After draining, sparge is a 10 min recycle at 170. My grain is crushed by the store. I've calibrated an equipment profile on Beersmith for my system w/ dead volumes etc yet I cant seem to get past 65% efficiency. I know that grain crush can make a big difference, and that brew store crushes are notoriously inefficient, but what else can i try. I went straight from extract to AG so I dont have a previous number to compare. Help?!