I have a Turnigy 9x and right now fly primarily airplanes and am looking at upgrading the firmware on it (primarily so I can do the $8 battery upgrade and not have to worry about soldering in the extra resistor--although I have to agree the stock FW is rather lacking and there are numerous other reasons to upgrade.) It seems the most popular one is ER9x. Are there any reasons I would NOT want to load that FW? Are there better ones?
As of now the mods I'm looking at doing are the $8 battery upgrade, installing the smartypants programmer and back-light, and ER9x FW. It also looks like the FrSky w/telemetry is a worthwhile upgrade (does ER9x support that?) Thoughts? Any other upgrades to consider?
Thanks