It was fine, very easy to strip and a simple, tough design. Gave the internals a bit of a polish and relubricated, its very smooth and quiet now. The air-seal is really solid, no hissing at all. Might need a new mainspring from Chambers, but I think it's doing about 10 ft/lbs - certainly its got a bit of a kick to it so maybe it's better to stick with the old spring! I'll let you know how I get on with it at the range.
atb
Alistair