Quote Originally Posted by TonyL View Post
That transfer port sounds mahoosive and will need sleeving down to (circa) 3.2 to 3.4mm?
yup. I saw the huge TP marks on the end of the piston seal too - it's obviously slamming. Looks like 5mm - crazy.

It's long, so defo sleave it down to 3mm ish or it's always going to shoot horribly and with low power. Explains the recoil and harsh cycle too.