I am going to be sending this Tx off to be modified and updated with firmware from http://www.overkillrc.com/ I also plan on doing the bearing mod and the voltage regulator mod. From everything I have read this radio with the updated firmware is a decent radio worth much more than the $39 or so I paid for it. I have seen other thread posting questions so I will post the changes and how well the updated firmware works. I know one thing it fixed which was expo, on the default firmware expo doesn't work.