I have yet to use it on a shot, but I carry a Snipepod. More of a backup than anything. Last elk was shot off a big rock, have used backpacks, outfitter's shooting sticks, etc. Give me a solid rest that I can get comfortable with and success rate goes up big time. Caveat, if shooting off a rock, make sure that the bullet clears the rock. Got a really bad memory about that.
I carry the stony point v rest its like $12 and has a 1/4-20 screw. Its the same head that goes on the stony point rests. I have it on a quick change plate for my slik mini tripod. It goes down to 9" or so so you can ise ot to shoot prone. I like it better than aa stock mounted tripod which is heavy. If you already carry a spotter/smal tripod i think its a good system.