Cushman, I originally purchased the same Kury iso grips. Just a heads up, you will probably have to trim out some of the rubber on the inside of the grip where it sits next to the switch housing. Unless that is the part someone trimmed down on the gray tube. There is normally a ring in that spot that is larger than the rest of the tube.
I didn't like the feel of the iso grips myself. Sold them to a forum member in England and got the D3's from Sean. Much better imo.
EDIT: Look at post #6 on this thread. They were talking about grinding off the ring, but I just cut back the rubber inside the grip and slid on perfect.