I have been running Scout#124 with a Pingle shifter now for 2 months. It is a great addition to the Scout or any motorcycle that you want to reduce clutch use with.
You can get on the throttle as hard as you want and it will shift more accurately and faster than anyone can manually.
However...
It's Done
EXP Rekluse Clutch
Pingle Electric Shifter
and
shazam - one bad ass very fast scout that you don't need to use the clutch lever or toe shifter to ride.
I am installing the Pingle Shifter - one problem I have run into is the footpeg location needs to be STOCK!
This will actually help me since my knees were a little close to my belly :}