I sat and looked at the schematic on Bagnall and Kirkwood to ensure I found no surprises when I got inside the gun, what a lovely piece of engineering.
I contacted all the usual places to try for spares and on stripping it I noticed the hammer spring looked very out of place and exceptionally rough considering the rest of the engineering, the ends of the spring had no closed coil and were not flatted, anyway the usual shops and online stores said pre takeover Daystate spares are exceptionally hard to come by.
So I grasped the bull by the horns and emailed Daystate asking for advice on where to get spares, Rachael who answered my email was very very helpful and asked around the workshop for spares and found they had the spring I needed and said yes they would post out to me.
The spring on arrival looked so different to what was already in there I thought I had mistakenly quoted the wrong gun name it was so different anyhow I tried it in and it fitted so I boxed the lot back up to test shoot, wow what a lovely gun this is, now set at 10.8Ft/ld and shooting very consistently.
Thanks for the help and comments and for making this an interesting conversation.