Ok, I understand. I wasn't aware of the smoothness.
In my case, {I love to tinker and wanted some spare parts}.
So, I bought a used throttle on Ebay for myself.
I wanted to modify the stock throttle to work as a throttle tamer. {EZ to do}
In addition to the throttle tube I also got; spare Throttle tube, throttle bodies, heated grip, 2 cables, throttle protector plate, and was able to do my experiment.
By the way, the modification worked well. It acts like a mild cam'ed throttle tamer.
Ride safe, Ted