I am planning on attempting my first smoke this weekend. I have a Masterbuilt 30 electric smoker and I'm using the Amaze-N-pellet smoker. The meat is about 7-7.5 lbs Boston Butt. I have read some conflicting information on how I should do this. Here are my questions: 1) Should I put the Maverick thermometer probe into the meat before I even start to smoke it? 2) Using the Amaze-n-pellet smoker, I've read I can get 10-12 hours of smoke, is that enough for a piece of meat this big? 3) Set it at 220 and just let it go or foil it at a certain point? Thanks for any and all advice.