RE: full house sailplane servo setup?
danham,
Don't worry about how you placed the servos. As someone said, just make your connection for one of the pair of servos differently. Hook the connecting rod to the other side of the servo arm of one of the servos.
If you look at RCKen's excellent graphic, you'll notice that the connecting rod makes a 90degree link with the servo arm. You want that for both servos. If you've already screwed on the horn for the servo that's going to have it's connection changed, you will need to move that flap horn to keep the servoarm/connectingrod/horn angles square. It's worth the effort.
If you look at RCKen's graphic, do your servos sit like his are shown? Or are they on their sides, maybe under a plywood cover plate? If they're on their sides, we need to talk more. If they're on their sides, you may want to turn the plate around 180 degrees if you can.