Morning all,
Thanks for the offer Daz, that's an option I hadn't known about - it is a bit of a cart spring in comparison.
I did speak to Ladbrook & Langton's who've done all the work on it since I inherited it from my dad - the quick n easy solution w'be to shorten the pin a touch.

I also spoke to a helpful lady at Peter Dyson re- a new spring but it w'be expensive.

Then I found J Blanch themselves over in Cheddington, Beds/Bucks. That's not far from me n worth a visit to see if they can do anything. Just waiting on the email response. My other option for a quick spring fix c'be the gunsmith over at Broomhills SG where the Aitken Grant & Lang label is/was.

That's me for now, more next week no doubt.

Ath
Fizz