ya i use it by hand with a WG Polishing pad, not as effective as a RO, but if you're trying to get behind a door handle... then you don't have a choice.
My friend was thinking about getting Klasse, but then there's the newer XMT 360. I read that Klasse can be finicky, so I want to help him out. Well, can XMT 360 be compared to Klasse AIO? I'm assuming XMT 360 is a chemical polish like Klasse..
I've heard Klasse SG is finicky but having used KAIO, I can say it's not difficult at all by hand. I've used 360 with the PC as well. The 360 has some abrasives where KAIO doesn't, but I'm sure that this will matter if you're applying by hand. 360 definately gave a better shine without anything else on top than KAIO did, but again, one was with the PC and one by hand.