What's the max grain bill you can mash BIAB style in your 10gal kettle? Once you know that, there is some math to do to figure out how you can split it to get 2 worts of the proper O.G. for your batches.
Draft 1: Lightly smoked Weizen
Draft 2: Belgian Wit
Draft 3: Rauchbier
Primary 1: German Scwarzbier
On Deck: Belgian Brown Ale, Pale Ale, Stout