Hey Clive,
Well that looks like my trouble, though with a Dyna "S". Bike ran great for my Dutch racing hero, only to run into trouble when the bike got on temp. Checked everything, but seems one of the pickups is gone.
You will not ride at Spa, but will you be there?
We talked shortly at Croix, at the photograph guy. Maybe you remember, talking about the lack of grip.
Cheers, Rob