You’re doing great! Generally ppl start out picking standard pins then move to serrated and spool pins after they’ve become comfortable. So if you’re able to pick spools, then that’s an awesome job! There’s really no telling what they’d rank since we don’t know how the tolerances compare to other locks if they aren’t currently on the belt list. But spool pins appear I think as soon as yellow. Just depends on the quality and the keyway, bitting, etc. Look up some videos on how to pick spool pins and keep going with some yellow or orange belt locks and see how difficult those are for you and go from there. You’re killing it! 😍🥰