thanks dino, but guess what . today
IT IS OFFICAL... HONG KONG NITRO RC MARKET IS DEAD.
since we have only one track left ( TRC closed & PYC is too small for nitro) in HK the track owner decided what are allow to use on his track, right down to Fuel, Engine, car and tires.. may be even tools and body!!!!
I may have to fly to Taiwan everytime I play with RC car
Lucky you have so many tracks