Just a strip down and polish with a re grease is al you need to do .
I have had a V-Mach kit in my .177 HW97 but started to have problems with it , so stripped it down put a standard spring back in ,polish re grease and it shoots the best it has ever done 11.5 FT/LBS
No wonder the dog lads think this section is fcuking strange............
Us airgun lads are the most normal ones on THL.
Your dead right on that matter , that 's for sure ,apart from Mark , Only saying Mark