Hiya!
I know it's a late reply but I was looking through this before adjusting the snail cams on my sr125 for hints and tips etc, just thought i'd add in (for anyone like me who is also preparing for a bit of adjusting):
Beware, we already know both snail cams must be even on both sides in order to maintain correct wheel alignment, so you might think just moving the snail cams round evenly both sides will work fine, which yes it might just work perfectly, however, dependent upon how much you loosen your axle nut, the snail cams may slip round more freely than you intended (or knew about) so make sure you count the notches/bumps/setting level on each cam and make sure they are even.