Seems after X years, my FF6 fails to work anymore. No doubt the crystals have grown and filled the little cans up. So I'm looking to get a new eBay combo. Dx6i seems to be a favourite although some DX3's would seem to do the job. Only concerned with L/R and F/R and weapon F/R so what would be a good RX and whats with the telemetry inputs on some of these RX now? Is dx6 a good choice or would a 5 do the job as well as they seem to be all spread spectrum too. (-and cheaper)