CST 1350SA Color Trackball

I have. This one is way better. Even though the bearings are POM instead of ball bearings. they are clearly superior to the "not-a-bearing" logitech uses. The ball on the CST is also nicer quality. I like the larger ball trackballs as well and can't imagine using one that's less than 2" in diameter. You can swap it out with a standard poll ball if you like, they are the same size (2.125") Actually, since it's phenolic resin, you can probably use it as a pool ball if you need a spare :p

How does this compare to the Logitech Trackman? Has someone here tried both that can comment? http://www.logitech.com/en-ca/product/trackman-marble

That trackball has been on the market with those colors for 20 years, long before "google" was even thought of.