well, I about 3/4 throttled it for the first time since I got them and I had the trailer behind me. it was slugish. that was with the trialer though. I have given it a bit of a hard half throttle a few times and it still seems with it. I have yet to give it all it has with them. i should do it soon. I'll let you all know.
I think the gas mileage is about the same too. hard to tell with how far off the spedo and odo is but I'm predicting insignificant change.. I'm babying it to preserve the tires though