I wouldn't say that it's worse than the standard, though. Unwieldy as it may be, I like that I can just keep on pressing C-/ and eventually get to the state I want without risk that I may have lost it because I accidentally made a change after a series of undos.

> Emacs documentation recommends using C-f (forward-character) to switch to redo mode, but in my opinion attaching side effect to movement is awful.

I use C-g (keyboard-quit) for that, which is the general let's-not-do-this-anymore keybinding. I think the documentation mentions C-f as an example keybinding that does the needful without much thought on being the "best" keybinding for it.