I was an Amsoil fanatic with my VTX, and it was easily the best oil I ever had in my VTX. But it did NOT run will in the Concours. The bike did shift poorly, as Pokey mentions above - while I don't agree with the invective nature of his post.
Just wondering (I hate to labor the point), but were you running the Wet Clutch specific AMSOIL. If so I wonder why it works so good on my C10 (silk smooth shifting) but you say it is poor on the C14. I am just about to place an order to AMSOIL. Should I change to something else??