Oh it's you! I was wondering who else was taking a ZHP to Speed Ventures events. Yesterday I was at SoW with Speed Ventures and did try revving it to 6,500 a few times and to 7,000 once.
About the shifting... in the 4th session I was downshifting to 2nd on the skid pad, then twice I couldn't get it into 2nd gear while holding the right-hand turn on the pad. I think I was able to downshift fine if I downshifted in a straight line. In the paddock and driving home it downshifted fine. Is that the kind issue you had with transmission mounts?
Lowering my car's resale value one track day at a time...