ok so i figured i'd glue the thing with epoxy, but for the 2nd problem...
Is the screw supposed to be able to come out completely? because only 1 does and i wonder if there's a way to fix this...
BTW, staggered sets are 3 sizes. you have 2 small, 2 medium and 2 long shafts
EDIT:
OK so i now have a 4x2 set of sperzel tuners! I decided to go ahaid with the experiment (after reading they where easy to take apart ) and it really is easy.
you have to unscrew the flathead screw, take stuff apart... then youre left with the mecanism; the hard part.
Principle here is simple... It SHOULD just come out (and make the shaft spin) by just pusing on it, no? Well no... You have to twist it a little, then push... repeat until its out , and the do the same to get it back in (on the other side, lol....) Just take it all back together and then, another little job... Calibrating the little screw so it's as hard (or easy) to turn the tuner. That's what the screw is for, anyways .
Hope i helped someone =D