Mark,
I have also seen this happen...but there are also ALOT more futaba radios at a race than any other
It is more about the frequency/qty of incidents (Vs amount of radios being used) than anything.
I have seen certain people have issues with all brands of radios...so it is not always the radio haha
And yes Julio, I would advise that only radios which have not had issues in any Dragons...they are hard/slow to get!
But that does not mean it has to be Futaba...just that you need to be aware incorrect use/setup of ANY radio WILL give you issues on the water!