What is the optimum internal temp to shoot for on a 6.75 Lb bone-in-butt?? Foil...no foil...when 2 foil?? Smoke the whole way thru or just at the beginning?? I started off in the ECB w/Kingsford Blue & Cowboy....smoked w/a combo of Hickory,Apple,Maple and Cherry CHIPS. I'll end up finishing up in a Brinkmann Electric water kettle. Any thoughts??