Hi. Sorry, unfortunately I never got that far in my search to test drive. After serious back and forth with the wife, we decided that a Class A is about 6 years off (retirement), and we will be better suited getting a TT for what we will be doing until then.
I wasn't able to get any specific info on performance, only the responses to my post that were made. We went to the recent manufacturers RV Show and I spoke to the Tiffin rep. He stated that for the 31' it really pulls strong. That coach is narrower, and shorter in height than the Red, etc and weighs less. He stated their tests showed it to be a perfect match for that coach.......of course, what else would he say I guess.
Sorry I couldn't be of more help. I really is a beautiful coach and I think we would have gone with it had we progressed in that direction. Good luck on your search!