Start by saying I like the looks and feel of this smaller light weight unit, probably the future of coming radio's. Like it or not the ON / Off switch is inside the steering wheel, I prefer it there.
The problem is on my 1st battery, the on off switch began to glitch and then totally fail, when using the steering.
Turns out there is a red & black wire attached to the switch that must work freely with the wheel. There also are the two guide tabs that are supposed to assist the wire movement and placement. Well the right one actually did the opposite and bound my red wire, finely pulling loose at the solder point on the switch.

FIX: I first soldered the wire back (good luck finding shrink wrap that small) & removed bout 3/8" from right tab, so far no problems.

i wound up putting another switch on the back of the wheel pod(hidden). i tried to resolder it and it lasted a couple more uses and broke again.

im crossing my fingers yours last longer.

I just experienced this problem for the first time this evening. Putting the power switch in the wheel just didn't make sense to in the first place. I think I will just mount a switch somewhere else on the TX
.
Bigger issue for me at this time is an issue with cross talk (sorry not sure what to call it)
There was another FlySky user at the track tonight and we had issues when we both tried to run at the same time. His was a GT3B. Most of the time he was okay but with my TX on and sitting on the bench he was powering and steering my Losi all over the place. I tried another RX and we both rebound to our rx's but still same issue existed.
Anyone else have this issue with GT3B or GT3C?

Late reply, I know, but I am getting this issue while my son and I use GT3C's, but only on some receivers and with my transmitter, not his. Does not fix when I rebind, but switching receivers often helps. When I switch to my old GT3B I don't have the problem. It's a bit of a mystery to me, and very annoying.

I had the same issue with my GT3C at the track today with 2 different receivers bought at different times. Both receivers work flawlessly when bound to my GT3, but when bound to the GT3C another racers GT3B caused issues - delayed/sticky steering/throttle response, light on reciever would go on and off like it lost signal. If the GT3B was off I had no issues. The other racer did not experience any issues.

Any suggestions or insight would be great.

I have been having issues like this with my GT3C. I was not able to pinpoint whether it was another FS user causing the issue or if it was the spectrum ghosting issue