So, I'm so glad to be fortunate enough to not worry about how much money I waste on RC products that are absolutely not neccessary to enjoy this great hobby. I recently was obligated to purchase tow (2) new TC4 transponders to race at a local track that just upgraded... Ok, fine out with the MRT and in with the newest.

Only to find out that the next TCS race in MD is still using the older decoder, so the new TC4 transponders will not work? But my MRT will. How is it that the new transponders won't count in the older system? Be prepared guys to travel with two different transponders going forward. Glad I paid full retail for a new TC4 and didn't trade in my MRT.... My job mylaps.