Hi All, To answer sadiejane's question, I would not want to use them on the nock end. The socket of the reparrow would be facing toward the target and there would be a chance of lifting a sliver. That's important when shooting off the hand.
The reparrows are very convenient, but don't do anything that can't be done with a more standard, spliced on footing. I believe George Tsoukalas recently had an article in PA demonstrating how to foot a wood shaft. Not an indictment of reparrows, as they truly are quicker than making your own footings. Ron