I just bought an RX-472 from a forum member. Didn't buy it for telemetry but it does show voltage without any add-ons. I'm set at 6 volt but can run at 7.4 volt with the servo I have. At 6 volt the telemetry is useless because I never go that low. Would it make sense to run at 7.4 and then I should see anything below that on my transmitter display? I know it's a little tougher on the servos from what I've heard. Am I making sense?