Programmable. That's a great value. I had 3 of them I pulled from an Hobby Lobby B-25. The were mechanical retracts. Then I purchased on from Nitroplanes that was a replacement for their B-25 that uses servoless retracts. I really that that would solve my problem... It behaved excactly the same as the HL ones did. *Sigh*
If I decided the build the British BaeHawk I'll use your method.