I'm in the minority that uses the can opener (occasionally for cans, more often as a package opener) reasonably often, so I'd rather lose a driver.
The PST II is, in my opinion, the closest to an ideal light EDC setup as LM has ever put into one tool. Scissors, nice file, real drivers, and no extra junk (looking at you, internal lanyard ring). The only real fault I can find is the lack of an awl. But, I don't think I actually need three different sizes of flat head. My gut tells me to swap out (or maybe just shape down) the medium one, since large is most useful for non driver duties like scraping, but I'm concerned that the medium will fit a large screw but the large won't fit a medium one. Any thoughts?
That does sound easiest.