Holster Wear- Black DLC in Kydex??

[Kahrdog]

Does anyone have experience carrying the Black DLC finished guns in Kydex holsters? Kydex scratches knives carried in the field badly. After a short period of time sand and dirt particles work their way in and do a number on the knife. I'm wondering if the black finished Kahr's hold up to this. I'm considering a Supertuck or similar holster, but will stick to leather if the finish will be harmed prematurely. I'm thinking a holster IWB is a cleaner enironment. Much less sand or grit than in a knife sheath riding on a belt or vest out in the open.

Kahrdog