I got to fly around that area again a few weeks ago and was actually quite impressed what the S2 could do. Some of the guys in the Carbon Cubs and 180 Super Cubs could go a bit faster, but I had no problems in the strips we went to (Sulpher Creek, Cabin Creek) or climbing to get over any of the ridges we wanted to.
I have a mount that was custom machined to fit around the strut (the one with the flat spot you know), and I have a Drift Innovations Stealth HD170 camera - works great, a little of a fish eye, and not much sound (built for sports) no vibration and I love the remote for starting and stopping the video - you do have to turn it on BEFORE you take off.
Diana
Pictures of the mount are on Backcountrypilot.org and supercub.org