It’s great to be able to convert from stepped to stepless.
I love stepped as there’s absolutely no ambiguity on settings when you’re jumping from pourover to espresso and vice versa. But I can see the benefits of stepless too for dialling in if required. Luckily I haven’t needed to yet, most of the espresso I’ve tried has been around 22-25.
I also didn’t bother checking actual zero, mine doesn’t chirp at zero and clearly I’ve got plenty of headroom since I’m grinding nowhere near zero so that’s fine for me. I’ve no inclination to take apart a brand new grinder that’s working well.
Good to know on the screwdriver! As someone who works on Harleys (mostly SAE/imperial) I’m no stranger to ‘unusual’ hardware.