I normally do all my shooting with a bipod and rear bag on the ground. I had rotator cuff surgery on my left shoulder a few weeks ago and right now I can't get my arm in a comfortable place when I'm belly down. I'll have to do my load work from a bench for a little while. What are some of you guys using for bags? Would I be better off with something like the Rock and a rear bag? I appreciate any advice as I'm dying to get out and do some shooting!