I shot muzzy 100s for years and went thru them like crazy. Always had problems with them planing and being all over the place. Reasons being either bent blades(on practice heads) or bent ferrules(on heads that were used for practice after being used on deer), or a combo of both. Drove me nuts. When shooting these heads you need to make sure everything is perfectly straight and there is no wobble whatsoever, otherwise they'll be all over the place. I shot the strykers last year and loved them, very tough, and plenty sharp. Shot the three blade rage year before last and had nothing but problems. The blades interfere with one another on a pretty consistent basis. Thinking of trying the slicktricks this year, $22 is pretty good for a set of broadheads.