Hey 2f, firstly, to your original question, yes, always put a mark on your work.
I think you and I have spoken on this briefly, but I’ll lay out my thoughts. I find your ‘mark’ interesting, unique, and it gives your items a late frontier feel to them I find appealing. ‘Mountain Man’, so to speak. I think a large percentage of people don’t mind a big mark on their handmade accoutrements, and think, as I do, it’s just part of having one of your items. That said, dealing with the other, unknown percentage (and finding out how big a percentage they are) who prefer a smaller mark is basically going to be a business decision for you. Perhaps you could do a limited ‘line’ of products for the guys who are going for a different aesthetic and see how it does? I think that’s the best way to find out how much business you may be leaving behind and if it’s worth catering to. You’re the brand, so I think the question is, “are you happy with it?” I’d be interested to see if you got a boost by test running a different mark, but that’s the sort of thing I’d always be second guessing if it were me.