ORIGINAL: RamboSmurf
... I decided to use automotive emblem mounting tape instead of servo mounting tape (looked the same and I had some). It's not! Elevator servo let loose and then all flight charateristics go out the window....
Double sided outdoor carpet tape, made by Intertape, is like servo tape. It's available at most hardware stores and a 42' roll costs about the same as a few inches of servo tape. I use it all the time with no problems.