I have used them before and I liked them.

I only had one problem with them. I shot a deer at about 30yds (complete pass through) the deer went about 55yds and fell dead. When I went to get my arrow I noticed that one blade was missing. The other two were still there but loose. The broadhead was also loose and I could turn it about a 1/4 turn before it tightened up to the arrow. I was real carefull when field dressing and sure enough it was still in the deer.

Since the blades are "locked" into place when the broadhead is tightened, I figured it popped off because the broadhead came loose.I used the provided tool to tighten them but every oncein a while I would find one that was slightly loose after shooting it, but never to the point where I lost a blade. That kinda turned me offon them but I still continued to use them (along with Spitfires)until I switch to the G5 Montecs.

Keep an eye on the broadhead to make sure they are tight and they should serve you well.