I've been quite impressed with slick tricks, wacems, turbos and iron head 100s. The slicks fly better than any head I've ever shot and have a large cuting diameter--the design tends leave big holes in what they hit. Kind of reminds me of the holes 12 or 10 guage slugs left in whitetails when I was a kid growing up back east. They also penetrate far more than they should given the cutting diameter. The only negative with the slick are the inconsistent blade sharpness. Some will shave right out of the package, some won't. I simply touch them up. The wacem's fly great and also penetrate suberbly. Blades are shaving sharp out of the package. The turbos and ironhead 100s also fly very well and have very sharp blades out of the package. I've only used the turbos and ironhead 100s on hogs, but I was much impressed. My primary bow shoots 400g arrows at 294fps. With the exception of the slictricks, I have to use these smaller heads to get field point accuracy and point of impact--even with a well tuned bow. For comparison, in my bow, which is well tuned, at 40 yds, the stingers hit 3" to the left of field tips. At this range, I can't adjust center shot to bring the two togther. If I was in a bind and only had stingers, I'd simply readjust my sights. The other reason they are not my first choice is they seem to be more affected by wind than the smaller heads, and the wind blows all to often on the high mountain ridges I hunt. By the way, the stingers group nearly as well as the slick tricks and field tips do accuracy wise.