I too shoot a PSE Stinger, bought it in 2007. I had all kinds of trouble when I first got it. I was advised at a different shop I was shooting the wrong arrows. I had tried several different kinds from Cabellas (this is where I bought it) but nothing worked that they advised. The new shop looked it up in the PSE book and it said to use Radial X Weave 200's. I have for quite awhile used Grim Reaper broadheads. They have a practice broadhead in the pack, and they shoot exactly like the field tips, and man the holes they make and the blood is like a mass murder scene. Have never had a problem since. The bow has not been touched or tuned since. I just screw on the broadheads, and do nothing else and it shoots dead on. Hope this helps