First post!
In the gay leather community the most highly regarded leather feel/type is always called "oil tanned." I've noticed it's a pretty ambiguous and inexact term. Everything from chamois to leathers that have been given a good grease rub-down seems to get called oil-tanned.
So without getting into definitions, how do I get that rough greasy feel of "oil-tanned" leathers? Wesco, Chippewa, and Carolina boots are some outstanding examples of the feel I'm going for. Pretty much anything (belts, chest harnesses, sam browns, arm cuffs, etc) made from a high-end gear manufacturer like Mr S Leather in San Francisco also has that feeling (warning: their site models the stuff in rather pornographic ways!). The gear feels rough and greasy and never has a discernible hard finish if you turn it on its side.
Tanning: are oil-tanned leathers chrome-tanned? I believe that's how Wescos are made, but I'm not sure. I'm using 8oz vege-tan straps, so I have no options on that point.
Dying: I've surface dyed it many coats around with Fiebings pro oil dye to get good penetration. Looks very black now.
Finishing: should I use Bag Kote? It seems like one of the most matte options. The angelus acrylic ones look way hard/shiny from my tests, even the matte one.
Getting the greasy feeling: what should I add to encourage that supple greasy feeling I'm used to? Check out my profile to see the products I frequently use as a bootblack to maintain these garments. Maybe they'll give you a hint as to what I'm getting at.
Any ideas appreciated!