All my knives are users. They get some slight abrasion and certainly get patina from use. Even my brand new Buck 102 in 5160 which has only seen very slight food prep use and immediate washing and drying (I am not attempting to get any patina on it in the least) is showing some very slight brown marks here and there).
Knives that get used get marks and patina. Them that don't . . . well . . . they don't need sharpening.
I'm considering heavily waxing the bevel or oiling before using masking tape.
I don't think I am understanding right but where ever you put wax the tape won't stick. Waxing the "bevel" if it is the sharpening bevel is going to put a water resisting coating on your ?water stones? . . .
Someone here recommended clear, fairly heavy thickness (quality) box tape. He is a professional sharpener so you might try that. He likes it much better than regular masking tape or blue painter's tape. I have no experience with it.
I have seen others use electrical tape. Again I have no experience with that.
Heck, my knives are lucky if I wipe off the place the blade rests between stone changes.
The sides of my knives have some marks but my sharpening bevels are mirrors and that satisfies me. Sure I have toothy edges to, incase I have to cut a rope . . . if I have to . . . I guess.
PS: probably your best bet is to free hand and to strop. I mean if you aren't using the knives hard doesn't matter if they have those funny rounded over edges; still tree tops . . . right ?