I have already removed 1 of the spacers when I fitted the brass hammer as the hammer is lots longer than the original plastic one.
I will try removing more spacers to see if it make it any better.

I have a mate with a skan chrono so will be doing some power tests when i get it operating safely.I am after incresed accuracy not power my shooting partner has rimfires n centrefires if we need power. I take an airgun for the shots which would be unsafe for the guns he uses.

Thanks for all the help n advice .

Nick