Thats all I had to go with. I popped a cheap oven thermometer on the grate, and it read round 250ish. I took the ABT's off about 10 minutes ago. Bacon was crispy on the outside...
The things...ARE AMAZING. So many flavors going on at once!! Next purchase is a Maverick though. I hate not knowing the grate temp.
A Maverick will be perfect for what you're trying to do, along with the advisement given here (particularly the one with the pictures, and using firebricks, water above the coals, etc. No sub for a WSM, but can work well for cooks < 8 hrs.