Thanks for all of the advise guys. I think that something about the torque that these motors generate has dawned on me and I think I have a better understanding of what I need.

The only thing that's keeping me from going with the 7XL is the low turn of the motor. I really want the runtime. Again, my choices boil down to either the 7XL or the 10L.

I would just jump on the 7XL, but the 10L is still lurking in my mind. I keep coming back to the fact that I'm going to be running this in an eight pound buggy. Not a 10+ pound monster truck. I'm wondering if I really need the torque of the XL motor. I really hate to keep going back and forth with this, but I'm really limited on battery. I made a motor mount tonight. I used an Emaxx mount. Not the stock one, but the optional one. It's about 4mm thick and is OK. It looks nice. I just ordered some 7075 aluminum plate cut to 2.25x3" to make a better mount. I got 1/4" and 3/16" thickness to see which works best. Anyway, after I set everything up, it appears that I won't be able to go with a dual battery setup, because if I do, I won't be able to really protect the batts from the bumps and bruises that come with racing. It looks like I'll have to go with a single 4S pack. Due to weight, I'm figuring it's either going to have to be a 4S 8Ah pack or a 4S2P 6Ah pack. The limited capacity has me worried about runtime.

Has anyone actually run a 10L in a buggy? I'd like to know how it went.