I just thought I'd ask how often the knives should be touched up to keep them at the top of their game.
regularly.
the easiest way to keep your knife sharp is, well, to keep it sharp.
if you let it get too dull between touch ups, then it requires a lot more effort and time to get back up to Ludicrous Sharp.
i tend to run edc over a strop, 30 swipes a side, pretty much every evening regardless if i've used the knife that day or not.