Check out Lattice Training on YouTube if you haven't. I remember they did a vid about min/small edge training and edge reduction training, something like that. Hopefully you can find it, because it seems some of their previous videos have disappeared. From what I remember, they outlined a max hang type protocol on small edges, where resistance is progressed over sessions, and a separate protocol, edge reduction training, where the edge size is reduced between workouts. The idea is that they are separate protocols to do at different times of your cycle, not all at once.
Also search on r/climbharder for any fingerboard topics. MP is kinda like using an old school encyclopedia for fingerboard questions. Over on reddit you'll have sports physiologists debating the intricacies of your particular question writing multi paragraph responses.
Also, just an idea-- most doors have molding that is <15 mm deep. In commercial settings/dorm rooms, it's like 8 mm and fairly slippery. If you have access to that it would be the perfect place for max hangs, without a hangboard. If it is metal and too slippery, just add a strip of grip tape (skateboard).