I also used them for a few years with the compound with good success. They fly really well, and are the sharpest out of the package broadhead I have ever seen. But the blades do have a tendency to rattle a bit. I made the switch to Magnus stingers, and haven't looked back. After a few seasons, you'll accumulate enough to always stay in true spinning and sharp broadheads. Two years ago, I sent in 9 four blade stingers that were bent, broken, or otherwise unsharpenable, and received 9 brand new ones in replacement for the cost of shipping (about $5). They stand behind their lifetime guarantee, no questions asked! And they are the easiest broadhead to re sharpen to hair shaving sharp.