Interesting! Putting the arrow in a power drill is a brilliant idea--I wouldn't have thought of that. Wayne, If I do this, I'd probably just use the modified arrows for bunnies and stump shooting, so close enough is close enough. I really, really need to make myself a spine tester, though. Thanks for the info, gents!
Keep a half dozen for the old bow if you still have it! You wouldn't want it to feel entirely left out!
Hawkdancer
Don't worry, Jerry, Thumper is my fishing bow since I got into self-bows. It's a fiberglass/elm recurve that shoots those fish arrows like a cannon! (or "Like Captain Ahab" as one of my friends said after he saw me take down a 25 pound carp)
Thomas