DUDE you are definately doin it tuff.....I see you havent mentioned weather or not you are loading the gear set when setting the pattern?? I cant see any marks on the spool or ring from a lever or like?
Cuple tips, always clean the paint/paste off the both ring & pinion each time you make a shim or BL change, dont apply to much paste (which you have there)it makes for difficult reading, the extra paste tends to wipe over the tooth & disturbs the pattern.