While I agree that vintage lacks some refinement, the source for the plugin is sitting in your sublime directory and is fairly easy to hack on. Things like the one-off cursors are fairly easy to fix. I'm not sure what you mean about switching files; I don't notice that particular problem. Do you have '"vintage_start_in_command_mode": true' set in your config?

As far as a vim-style editing plugin goes, vintage has by far been the best I've encountered. It's one of the few where it's fairly straightforward to add in the hacky things I've done to vim and still get a similar experience.