For the last few months, John has been selling a few variations of his fantastic ceramic bearing on ebay. I have had the pleasure to try almost every iteration of them. After months of tweaking, testing, and working with other bearing makers to ensure no patents were violated, John has really come up with a great product.
The Terrapin X Wing has a flat edges and a stepped center groove to keep your string in the center of the bearing. The step is actually a CNC’ed groove, and it is done with precision. Then John chemically treats the bearing with some kind of voodoo. He explained it to me, but it was all chemical science pokemon magic. The result in a fantastic fusion of long, smooth, and consistent spins.
The bearing come in two flavors, a Steel ball (S/S) that thinks they are Ceramic, and a Ceramic (S/C) that think they are fighter pilots. I can not stress the impressiveness that these bearings deliver. They are a MUST try. If you have a favorite bearing already, these might just change your mind, they are THAT good.
You can ONLY get these bearings from John. His Ebay ID is fjh123 and he can also be found on the YYN boards under the same name.