[helijeli]

Good that you sorted your elevators out Steve. Joining them together is probably the simplest way. Interesting the comments about separate servos to effect roll rate. That's exactly how most Jet Fighters operate, The 2 stabilators (the entire horizontal stabilizer) move independently like elevons (eg on the Stryker) to produce both elevator and aileron forces. On a Fighter, this is important for maximum performance - if you ever watch a Fighter like a F15 come in to land, the Stabilators are flapping all over the place and independent of each other. Actually it's the flight computer that's really controlling the control surfaces - the pilot may pull back on the stick when he wants to raise the nose for example, but the flight computer is mainly feeding in control movements to stabilise a fairly unstable aircraft and in amongst that also respond to the Pilot's requests as well.