+1 on the four blade design, I too was researching heads and wanted a four blade for the same reason so I ended up with the Slick Tricks.
I had it narrowed down to the Magnus Stingers, Muzzy MX-4, and the Slick Tricks.
The Slick Tricks won for me because I saw lots of good reviews and positive feed back on them, they had thicker blades than the Muzzys, and the Magnus Stingers just looked to big, I'm sure they are a good head but usually larger cutting diameters are harder for me to tune.
The Slick Tricks tuned easy for me as well and are shooting exactly like my field points. I hope I get to try them out on a big stinky bull next month.