Is there any reason you'd have to hard reset over a soft reset during any of the categories?

I don't run Glitchless (at least not yet) so I could be wrong, but I'm fairly sure the program does not update automatically. You have to manually use it while playing.

Disregard what I posted earlier. You're right. You have to take the whiteout or start a new run. Resetting the game will make the in-game timer inaccurate.

You can still keep going with the run for practice, but it won't be legitimate for the leaderboards.