This was my first season with my crossbow. Started out using G5 T3's and had a bad experience. I'm about 99% sure I had one open in flight. (And yes, it was the one specifically for crossbows with the red spider clip) Ended up making the recovery, but it wasn't an easy one. After that I switched to the standard 100 gr spitfire, and couldn't be happier. With the practice blades i got same poi as field points out to 40 yards, which is as far as i tried them. Took a big doe on the last day of the season, it passed thru no problem, and she went down within 25 yards. The only issue I can see could be a hard angling shot. I realize 1 kill is t exactly extensive testing but for what it's worth, I'm very confident in them.