if it was me i would strip her down and change all the seals and polish the hammer and rail. Get in touch with Julian on here he will sort the parts for u
I say the same as above.^^^^^^^ do it urself mate when i got my 410 i changed all the seals and fit new striker and exhaust valve and found it very easy.look on you tube there are a few guidea to stripping them down
am a bit of a novice when it comes to tuning guns compared to some guys on here. but when I got my s410 I stripped it down replaced loads of seals and replaced the striker and firing pin assembly. which I got off Julian on the forum. and did a 90 shot string which Mark kindly put on a spread sheet a...
Not sure what am looking to achive to be honest Mark
think i have caught that tinkering bug and just fancy messing around with it lol. So far i have put new striker and firing valve in and got it shooting good with the help of your charts