A new vendor is making MT scales and sheaths, and they're pretty sweet. I don't know if I can mention them here or not, but the company name is StonerCNC. I won't go as far as to link them, but shouldn't be too hard to find.
Here with a couple other mules, both Halpern grips. The black being factory Spyderco black textured, the others I bought directly from Halpern some years ago, and hand-smoothed them myself. Have some blue/black hand-smoothed ones kicking around somewhere too.
However, the Stoner grips are sort of opposite. From edge to spine, they’re pretty square (with rounded corners), with only mild longitudinal contouring, which makes them more hand filling. This makes them thicker along the spine where you generally put the most pressure when pushing the edge through something. Having large hands, I really like this! They have some mild contouring from tip to butt, with a palm swell in the middle. The thinnest part is where the screws go through the scales.
One other nice little detail, a hidden lanyard cutout at the butt:
Retention is great! And it is a svelte pancake, very slim and trim. Nothing extra here! 
Overall, I am VERY impressed! I’ll definitely be ordering more of these in the future.
