I consider myself fortunate that I chose the Futaba 2.4Mhz system. I believe I have had it for over one year; four receivers, one transmitter, the six channel one. Not one problem and I fly much more than average. There was a quality scare about 4 months ago. My transmitter was tested and all was OK. Eliminating the possibility of accidentally "shooting" someone down is what drove me to make the change to 2.4Mhz. My clubs have always had excellent frequency control. With humans, accidents will happen. Even when we are very careful.