So, the conclusion is :
We should get Turnigy 9X instead of 9XR, then, add backlight( USD4.99) and flash ER9X ( how much work ? ) to Turnigy 9X ?
Besides the above difference, all other features of 9XR can be found on 9X ?
I have been on RC cars for 30 years, I can conclude to you all that some China transmitters like HL
madtruck is a total crap, I have a lot of China models, some are good, some are totally crappy with no quality feel, like sharp finger cutting edges, sloppy wheel control, poor quality plastic casing, it is a pain to hold and use the Tx, just like holding a toy, WTF, so, you have to be very careful when buying china products, some are ok, the others are just a waste of money, I have a lot of China RC car transmitters, just dump in the store room never used.
So, I don't know to what extend how bad the quality of 9XR Tx physically, please no biased opinion here,
Our target is Turnigy 9X or 9XR. FrSky Taranis is 4 times the price. Very few people will need a 16 channel Tx- Unrealistic and just a gimmick.
Victor Lee(CPA,MNCC)
Chartered Accountant