I know the spring mod but its redundant as we have the external control - I personally dont know the clearance thing that mountune are on about - I am no engine builder - obviously , guess its making sure the rotor is tight as hell to the cover by the exact amount. I need to keep my motivation good at these hard times lol

Yip I would be V grateful for a PM on what you think is wise as you have experience of reving the nuts out of these engines

Martin