I had the Kaoko on VFR1200. It's well made, and takes a little getting used to.
My 13 came with one similar to the Kako but without the dial. Just looks like a regular end weights.
Didnt know it was there for a week. Harder to enguage without the dial.
I bought a throttle lock from somebody here a few years ago. They both work well.
ITS ALL GOOD