I purchased a Kaoko and I would have to take the weight out of the end of the grip. It's not that easy. Unless there is a special tool.
How much work is the Throttlemeister to install? Unscrew and screw? If it is, I'll send this Kaoko back and get a Throttlemeister. I'm using a Go Cruise. I just finished a 2700 mile trip and it was useful.