Just a quick note to people to check your new TS kits for matching grade of piston to the barrel.
Mine came with a B barrel and a C grade piston

Probs ok, need a proper running in period though. Certainly not as it should be. Poor doo really though........Other TS kits from the same dealer are the same.
Word on the street is theres no other pistons in stock at the mo!! So decided on another route .....