Interestingly, I went through various McM specs on combs and still haven't quite figured out the 16th or two of hate for a HTG vs others:

A-5 - 1/4"

Varmint - 1/2"

Sporter - 1/2"

Mountain - 9/16"

Game Scout - 9/16"

HTG - 5/8"

Classic - 11/16"