I made my fourth brew and first all grain (BIAB) last night...a dragons milk clone. My OG came out at 1.071, but the BYO magazine said it should be 1.080. I brewed 5.5 gal to account for trub loss. I plugged the grains and gravity into brewers friend to get my efficiency and it looks like I was at 80% which was very surprising. Did the volume difference account for the gap between my OG and the 1.08 or am I missing something?? Thoughts on how this will affect taste of the finished product?