I did this today, changed nothing in the recipe (besides the Rice Hulls), but I did it BIAB method. I have to say this has been the easiest brew yet. The pumpkin floated around in the mash, then once I pulled the strainer basket and went to drain all the wort out, the pumpkin settled on top of the grain at the bottom and created its own slow sparge by slowly draining everything off the top. This prevented squeazing the bag and getting mushy pumpkin draining everywhere. Doing the boil now but it already smells great.