I'm into my second AG brew and will start my 3rd in the next couple of weeks. First batch(black ipa) didn't collect much data but seem to hit most of the numbers(mash temps & OG) 2nd batch(kolsch) collected more data. Hit mash temps and volumes but not pre-boil or post-boil SG's. I understand that one possible issue is my mill/crush, I'm working on that. Finally my question. What can I do near the end of boil to hit target OG? Add DME, 1c.=8pts? or boil longer, will reduce post boil volume? Combination? Just asking for a little guidance. Thx.