Sorry it took me a while to get back to everyone, I haven't been able to test the truck either. Last Saturday during the big outing, I rolled the truck and it slid upside down for a ways ripping off the antenna wire at about 2" or so. It worked good enough out there in the hills, but glitched like crazy back home. I finally swapped it out, but another of my A123's has bit the dust, so I'll rebuild the remaining loose cells into a single 4s pack......should have stump pulling torque then, just have to work out the mounting.