Apologies if this has been covered, but I didn't find anything with a search. I just received my #15, and it came with a buffalo leather pocket slip. Seems I've read some things in other posts about some leathers affecting carbon steel and/or bolsters adversely. Maybe that was just when using them for storing long term, but wanted to get some advice before I start using this kind of leather slip for carrying this knife, so I don't do any damage. Thanks for the input.