I am not that up on Servo's and servo travel, but there is a gizmo sold as advertized here on RCU. The gizmo is called TXServo. It connects the servo's to a computer controlled testing program that will exercize servo's through their entire span of rotation. I tried a couple different types on this thing and got pretty mucn 180 degrees of movement out of them both. The device is reasonable (price wise) because it includes the software to test with.

Anyway, I was having problems with one of my servo's used on the throttle of a fuel plane. I could not get what I thought was full throw out of this thing so that I had to use mechanical adjustments to get full throttle movement with the servo only rotating about 40 degrees. One of the guys at the field recognized the problem and we worked through it by resetting the throw of the servo which included centering, and so on. I did not write down the procedure, nor do I remember the process, but can certainly find out what he did so I can pass it on.

Basically, it re-set the transmitter for servo throw, end points, centering, and so on, so that full servo action was achieved. This may be what you need to do.

Did you 'copy' a model for a multiple model memory transmitter? If so, you may have done exactly what I did and simply need to reset that channel for full throttle throw.

Someone on here may know the process, and may post it, but, as I said, I don't exactly remember the process so I cannot relate it to you.

Hope this helps a bit.

DS.