Well I have too buy tracks now. Been on the phone talking too people and from what I have gathered most of the tracks are Chinese imports with the chinese manufacturer doing the R&D and in charge of quality control. There are a few exceptions. Camoplast is one. They manufacturer there own and have a pretty good market share on rubber tracks on everything. They are also only about 10% more than the chinese tracks. McLaren also seems too have a better track than the chinese ones although I have not verified where they are manufactured. One of my High school buddies works for Camoplast come too find out so I had a long talk with him today. Laening heavily towards the Camoplast.