I downloaded Beersmith with the intention of converting AG batches to partial mashes, since I will be doing partial mashes from now on. I put in an AG recipe from "How to Brew" that had the partial mash instructions included. I put in the AG recipe exactly as the book listed, but for some reason I kept getting a different OG, FG, and bitterness level. Also, the conversion to PM yielded a very different recipe.
What could I be doing wrong? I kept having trouble with boil volume. Do I keep the batch size at 5 gallons, even though most recipes give a 6.5 pre boil gravity and a 5.5 OG?