[Izzy]

the Tamiya transmission is a shift on the fly style - but if your hauling around a 90+ pound dozer you should stop and shift - but under 99% of our use its shift on the fly!

You might also check to make sure that your center point is accurate on second gear. Ive seen several trucks where the linkage is mis adjusted. Best way to check this is to pop the joint loose and let the linkage find its natural center point, then start up your electronics to let the servo center itself, then compare the 2. If your using a higher end radio with end point adjustements this is a whole lot easier... Lastely check the full swing points of the servo on shifting. Standard Tamiya linkage can be tweaaked to where it likes each endpoint and the center point (within some compromise on each).

Chris