I bought some GT Lightning arrows from George at Tollgate archery to shoot out of a 43# bow. Just for fun I tried them out of my 54# Black Widow and they fly extremely well out to 40-50 yards with no wobble at all. We put 100 grain inserts in them and they weigh about 510 grains. I spined them at 55#'s on a Adams spine tester. I was a little suprised at this as they are supposedly kids arrows. My draw is 27" and the arrows are 28". Did I luck into something good as these are economical? I've pounded these things stump shooting and they seem to take it well. I would have been thru 4-5 dozen woodies by now. I can't get a Alaskan Sitka to fly out of this bow at all. What do you think? I think I might have found an answer to economical hunting arrows. Anyone else try these?