I will only shoot fixed blades. They always fly good, because I know how to tune my bow and arrows to do so. I will also only shoot broadheads that I can easily sharpen myself. I prefer the edge I put on a broadhead to one that most come with, and particular fixed blade heads are much easier to sharpen. Lastly, I will eliminate a moving part whenever I can. I see no advantage to having the moving blades, yet I see where there is a chance that they may not move like they're supposed to.