My experience has been SlickTricks while a good broadhead did not fly as true to my field points at longer ranges as did the Magnus Stinger. SlickTricks also make much more noise in flight than does the Stinger, and from limited experience the Magnus Stinger with the not as steep blade angle seems to be the king of penetration. Also Magnus Stingers have a lifetime replacement regardless of what caused the damage. However both heads spin true and are of high quality.
BD