What I'd like to be able to do is (in theory) have both engines running and be able to adjust the throttle setting individually on each throttle servo. Sure I can stop and start the engines, adjust the clevis and then start them back up but it sure would be nice to be able to do it while they're warm & running. This would make it much easier to readjust things on a day-to-day basis if needed.
Damon what I wanted to accomplish was an easier way to trim adjust the engines while running relative to each other primarily at low speed or idle. In addition the main throttle trim needed to move all engines up or down in unison. For full throttle the barrel simply needed to be wide open.
First problem was one of my servos centered different that the other requiring a different horn position and substantial sub trim. Second problem was desensitizing pots 6 and 7 so they act as trim rather than full range of movement. In addition the mechanical aspects of the carb linkage (throttle arm position) needed close attention.
I also used switches to un-slave each outboard engine but simulating engine out is an entirely different subject. Changing the engine differential in the air can be very informative.
The 8UAP or F is a very capable radio and likely there are several programming ways to accomplish the same results. Changing the throttle curve would not be my choice. Sub trimming the channels might be appropriate. The pots can also be used for sequenced shut down, which can be impressive. Of course for sequence shutdown you must first land with everything running which is the hardest part.
Bill