Bought the side mount but when I received it, it didn't seem that well polished and looking like it would end up scratching the heck out of the trackimo (not that it would ruin it but hey it wasn't crazy cheap either). Have it sitting around here in a box somewhere. Ended up using the soft case it comes with, then not only just using the small piece of velcro on the bottom of trackimo mounted to camera guard as Reed L above did, but also running a velcro strap through and around the camera guard that strapped Trackimo to camera guard. To top it off, used a tether that quickly fastens to landing gear so if there was any chance of it actually coming separated from camera guard (don't think it will ever be a problem) it is still attached to the bird. Works really good, dig it.