Just had a little hoon with my Zed to test my new action cam. Pretty pleased with the image and sound quality! You can watch the vid in HD quality (but you need to set it manually to HD at the bottom right of the vid on youtube). The tone of the engine and the exhaust is really close to reality! Only differenc is that you hear either one as first it was mounted on the front en later in the vid at the rear. I'll have to make a video in the cockpit to show what it sounds like together.
I really wish they'd done the 108s in 19", I love mine but I can't shift the nagging feeling that they look very slightly too small from some angles. 19" versions would be perfection.