I recently got a trex 450 clone in a trade. Bond to the dx6i. My problem is when i push the throttle stick up, nothing happens. but when i turn the throttle hold switch off, they spin on there own. even withthe throttle stick all the way down. like the throttle switch is the power source.. its very strange to me. Im new to the 450 size.. and just got familiar with the mcpx , so baer with me lol. thanks in advance.