Low profile heads are catching on quickly because while they are a fixed blade head, they fly like darts because of their short profile. While they fly beautifully, they offer a small cutting diameter, usually less than 1".
I'm not sure how small these things get, but be aware that the DNR may regulate how big the diameter must be for legal deer hunting gear.
IL requires 7/8", but I can't imagine choosing something smaller than a 1-1/8" anyway.
I use the Muzzy 3 blades for whitetails, but would consider mechs for soft targets like turkey where penetration is a non issue and the added shock of the mech opening up is a benfit to drop the bird on the spot. I might switch to a COC head for massive tough animals like elk.