i searched and searched for camera setups and so on and so forth, i did see that the jack knife had quite a bit of vibration when you shot. i do however feel that if you took a piece of bicycle tube and placed it between the mount and the bow it would seriously cut down on the effects of vibration. also another nice thing about the jack knife is that if you plan on using an iPhone you can purchase several lenses for it. my set up is a fuji fim xp50 (dust proof, water proof, shock proof ect)X's 2, with a gorilla pod for mounting to a tree and a second gorilla pod to attach my POV camera. Price: 14.00 for 1 gorilla pod 140-200 for 1 xp50 not to bad for the price and the camera has full 1080 HD video
I'm planning on the same set up with a Nikon cop pix 100. I'm still undecided on a bow mount for using my phone as well.