Pete,

You certainly can use a Matchbox to do what you did and while excess cable is not a great thing, it likely won't cause you a problem.

That being said, with a 12FG and a 6014, you should NOT need a Matchbox to do what you are trying to do. The 12FG is *made* to do this and has a servo grouping function *specifically* to synchronize servos. In fact, with the 12FG, you could connect 2 servos on different channels to the same surface and you can adjust them so that they are synchronized just like they were connected to a Matchbox. Clearly the "expert" does not have a lot of experience doing this with a 12FG, but it can easily be done - you have to connect the two servos to the correct channels on the RX and set it up correctly in the radio itself, but if you do so, the elevators will track perfectly, regardless of how fast you move the sticks...

Ya just gotta' know what you are doing...

Bob