So it looks like cooper has put out a new MT tire right around the time that I am in the need for new tires. I was originally looking at the st/maxx tires but they are really expensive compared to other brands. The new stt pro is cheaper and there is a 70 dollar rebate. My only hesitation is that they weigh in at 61 lbs. Do you think that's pushing it in our rigs? overall diameter is 33.03 also.