Kamp,
On the smaller models, the angle is opposite from the full sized models so that you can hold the knife in reverse grip. There are also traction grooves present, that are not on the full size models. The concelement/backup models are wicked little boogers. Really enjoying it.
Payback,
Huh, not sure on that one, My black cord MT has a lot of light marks on flats, but it's a used knife. The MT SS has some very light marks, but its newer. The HT is gettin some more, but I've been pulling it in and out of the sheath to break it in a little. Right now the fit is super tight, and every time I pull the HT out, it brings a bunch of kydex flakes with it. That will go away in time. Both MT's fit really well in the sheath, but are easy to draw. The HT Requires 2 hands to get out, again it's brand new so will require some break in time.