Well, I've been doing batch sparge with a brew bag in the MLT for a few batches now and it's working great. Just doughed in and hit mash temp. spot on, then realized that I hadn't put the brew bag in. Just a street elbow turned toward the bottom and no filter at all. $hit! Maybe tomorrow I'll go down to the used brain lot and see if they have anything with some good sense left in it Got the brew bag in the kettle already so I don't forget it again. When mash is done guess I'll just dump the MLT into the kettle and do a pour over with the sparge water and expect to lose a few points. It'll still be beer.