The outside temps don't much matter as the smoker is doing smoker temp. The Amnps will help with TBS. You can spend the day baby sitting it and turning it on and off. You can lay them down if you like. they will have grill marks on them but that is just looks. As for the oven or smoker it is just a heat source so still no problems. And yes that is why a lot of us have several smokers.
MES40 is great. I'm not sure why I wasted my time with a little chief before picking up my MES. I'll need to get some mustard seed...that may be the 1 spice I don't already have in my cabinet. Let me know how it tastes fried up. I've just been eating it cold. Vac packed the second log I wrapped in parchment before puttin the smoker. Not sure if it hit the necessary internal temp. Might need to fry when I dig in to that one.