I've used shockwaves for a couple of years and they have worked everytime.I test them first. I Take the rubber band off , point the tip up and the blades will fall down if they don't something is wrong. If you shoot your mechanical into a foam target. you will get foam in the grooves now you have to take the blades out and clean the grooves out. and then resharpen the blade or replace it cause it is now dull. One trip into a foam target and any broadhead is dull.

If your not mechanically inclined and can't take one apart and put it back together again and have it function properly you should not use them. Get a fixed broadhead.

Me, I'll use both.