I forgot where, but somone had asked about what tach to put on their C model. Here is a picture of the Cobra tach made for the 1300C. It is way different from the tach on their website, and much cleaner looking in my opinion.
The back of the gauge is polished with a very nice finish and the wires come out all together in a rubber sleeve. The only problem I found was the seleeve was a little short for my liking and so I added a piece of heat shrink tube over it to make the wires a little more sanitary.
As to the needle, I have not noticed any bounce in it at all. I have looked at some of the cehaper tachs and they didn't apperar to be made as well, but maybe they were. I would definately recommend the Cobra for anyone with a C model.