I think it depends on the razor and the reason for restoring it. In manah's case he obviously knew he had the skill and he liked the razor well enough to go to the trouble. In your case you are testing the waters, if I understand correctly, to develop the skills. Nothing wrong with that. I honed a large chip out of a 9/8 Joseph Rodgers once because the razor was worth the labor involved. For me it would have to be a razor I really wanted to invest the time and effort in. Not a garden variety shaver.

Same with frowns. Even more so. I once invested a heck of a lot of time in a Hermes because of the challenge of being able to do it, and I wanted that brand. They were the progenitor of Merkur and I have a thing for Merkur straights. It turned out well enough but now I avoid razors with frowns like the plague.