SealTeamNorm

@Rogerborg found out the mystery of why the hop does nothing... Opened it up, had no nub unit in it! Omega flat one on order so should be able to hop it down to 345 or so.
 
Agreed joules makes far more sense but both sites I play at have a 350 with 0.2 limit.
 
I would trim the spring but for 3 FPS it feels over kill and I really don't want to open it up again

Not at all?  That's... very unusual.  Is it (observably) applying hop?
 
 
 
Do your local sites test using 0.2g?  If they're operating in the 21st century, I'd highly encourage thinking in terms of Joules, using the weight of BB that you intent to use, and ideally with the hop dialled in to lift it.

Yeah, 348fps is great on 0.20's, but once you're running a proper weight of BB (i.e 0.25 or 0.28g), there's a fair chance good ol' Joule Creep will get ya, and you'll fall appreciably, noticeably foul of a site limit.

Haha yes perhaps it needs more varnish
 
@ak2m4 was definitely the next port of call however trimmed the tappet down...
First 2 shots come out weird then it quickly settles to a consistent 340 344fps( shot 80 odd times). Which tbh is bang on.
 
I need to strip it again as full auto won't go on now but it definitely seems to be the tallest timing , going to take one more but off then leave it.