I have a method that seems to work for me. With the servo, RX, TX and programmer all on a bench in front of me I find the center first. I use a small 3" machinest square to get a good 90 degree angle.

I use a Futaba RX and TX and typically on each servo end up in the -8 to -10 range to geta center reading. I set the end points to my control surfaces travel limits.

DO NOT SET SURFACE TRAVEL LIMITS WHILE ATTACHED!. you can overdrive your surfaces and break them.....this is bad.

I will admit whan I was first trying to figure this programmer out I used the video on DOD and it was a HUGE help!

I would like hitech to make getting the center position a bit easier. THere ought to be a way to read what the TX is saying center is and setting it direct to the servo without all the hunt and peck method.