ORIGINAL: Double Creek
I tried them this season and did not like them. Half way through the season I went back to ACC's. I found that if you hit anything solid, you pretty much damaged the arrow. It's a flawed design IMO and won't last long.
I will say though, they out penetrated my other arrows in my 3D targets.
I did a test on mine and shot them into wood and i blew right through at 20 yrds. and there is nothing wrong with the arrow. I also shot one at a concrete wall and didn't damage the arrow at all.
I shoot the Axis and get great groups out to 30 yds.