MetalMan, that is unusual, from what I've seen. Oh, I'm also assuming that the servo that we are talking about is digital. Is it? Is the 5955 digital?

I know that with a JR Z9000T, I had to change receiver packs every third tank or so when I was running nitro. For long runs, I used to switch to an Airtronics 358, just so that the battery would last longer.