Thanks Shed Tuner ! Lots of nice ephemera
I put the standard new spring in and did have on your advice sleeved the spring guide, works a treat no twang !! way better than maccari tar

Power is still a fair bit more down than I would have thought the barrel would have caused, but can see no other reason till I strip the lond fella and compare

But that sleeve works beter than any other mod for sure