Sniper too hot!

[Aj698]

Hi all,

Looking for advice for a SA-S03 High Velocity pew.  

Upgraded hop rubber to Laylax purple Nine ball and rounded Airsoftpro cylinder head. Airseal is now awesome but it running hot (379fps on .43 bb's).

Any thoughts how to reduce to UK limit of 340fps??

Thanks in advance ??