John,
Not really - I don't think you can really improve the feel with the standard steel plates.
It works ok but is either in or out - you can't feather it like a more modern bike.
One of the lads I know has had some plates reworked by putting some fibre on every other (like a modern clutch). He has then fitted a longer brass bar to push on the spider so it clears.
His is a 349 though - and I'm still trying to find out where he got it all done ......
I've just used standard oils as original.
If you try something else I'd be interested with your thoughts ?? As I didn't feel the problem was oil related but facing related!!
On another note - my throttle is sorted - I had a modified throttle tube that I've stupidly replaced with A standard one - hence it wasn't shut off properly
Cheers
As always
The Wobbler