Hello, I'd like to build a highly accurate 6mmARC for more precision shooting... Kind of a coyote hunting/precision set up. I'm using a 20" SPR profile barrel. I've heard heavy barrels and/or bipod loads can cause POI changes. I've read a lot of posts but noting definitive. I'm trying to decide between a thermofit BCM receiver w/ the DD MFR XL rail. Or, the Aero Precision ENHANCED receiver and Handguard. I've handled the AR Enhanced and was not thrilled w/ the large girth of the Handguard. But, if it would be better for my setup, I'll deal w/ it.. Your thoughts and input are appreciated.