i can see were you are coming from we have had mugens since primie 12 2/3/4/4r and sorry to say mtx5 car is quick but you will nead a new one each heat/car/we will go back to mtx4r for nationals but we all know it is a user problem and we are all stuped even when i first started we could get a meeting with no troubel ///it is quality control the gears are as bad as old 3 racing blue ones you youst buy mugen because you could race it out of the box now you might as well race the box
greg