I'm starting my next rifle build and I've narrowed my stock choice down to the McMillan A5 or A3. McMillan Tactical Stocks, McMillan Fiberglass Stocks, Synthetic Stocks, Tactical Stocks I really like the forearm of the A5 and the butt of the A3. Unfortunately, McMillan will not make a hybrid for me. Generally speaking this rifle will be used for casual F-class competition, groundhog and deer hunting. It will primarily be shot off a bipod on the front. My concern is how to best make elevation adjustments with the rear. With the A3 buttstock you make elevation changes by just moving your rear bag forward and back. With the A5 you would have to make adjustments by squeezing or rotating a rear bag. Currently all my rifles have the A3 style butt. Thanks for your thoughts, suggestions and recommendations on which stock to choose.