Hi,
Well the left crank issue is fixed it seems, after a ride today. It
didn't loosen at all over a period it was undoing itself twice before.
As it was a "bodge" and I'm not really interested in trying to take it
apart to show (or not) reverse serviceability, I'm not posting details.
I've a very good idea what would ensue if I did .....
PM me if your interested, or have the same issue.
rgds, sreten.