I am looking to get a harris swiveling bi-pod for my new 15-22. Will the 6-9" be tall enough for the mag to clear the ground in a prone position or while shooting from a bench? I am a short guy (5'7") with a small build. I don't know the size but I recently shot with someones bi-pod and felt I was arching my back upward which was uncomfortable and which I assume decreased my accuracy in shot placement. Thoughts? Thank you!