I can't answer your strop question but just wanted to compliment you on your leatherwork. I do some occasionaly, mainly making sheaths for knives I've made and have dabbled with tooling. Your work is very nice. Very clean.
I make and use strops for honing my knives but I would be surprised if they would work to the same degree for a straight. For my knives I use a thicker veg tanned leather, flesh side, glue down the hair side to a block of wood and load the flesh side with green polishing compound. Works beautifully. I can get a shaving edge, and maintain it quite nicely that way but of course a shaving edge on a knife is vastly different than a shaving edge on a straight.
I'm going to hop on this thread because since I'm very OCD about sharp knives (wear the scars to prove it) I'm very interested in how straights are honed and will probably try shaving with one someday.
Romans 1:16 - For I am not ashamed of the gospel...