Just thought of a solution. It's terrible & hokey, but may work. Rather than setting a button press, set a macro. The macro should read something like (and forgive if this isn't accurate, haven't programmed macros in Saiteks program, but have with other gaming hardware)
Ex: Throttle Button B. Desired keyboard button is B, as well - for Air Brakes.
R-click the button area, click "program macro", then with the cursor in the proper box, tap "b" on the keyboard. Not too fast, but don't hold it down either. Then click ok. Now the "b" button n the throttle will mimic that button press every time. You can also edit the time.
____________
(down)
.250ms. <- how long the delay is between key press/release. .250 = 1/4second
(up)
_____________
So you can tailor the key depress time however you see fit. 1/4 sec may be too long.
Anyways. I don't like this as a "fix", but its better than having a barely functioning stick. Hopefully somebody can point us in the right direction here? I could have sworn I saw a key repeat-speed option somewhere. Maybe it's under the "control" program.... Ill check tomorrow.