RE: World Models P-82 Twin Mustang
The Simprop [link=http://www.hobby-lobby.com/servos.htm]SI0809[/link] Servo Delay Module works great with my Blue Bird BMS620MG servo. The delay is adjusted with a small screwdriver to provide a realistic scale speed for the retracts on my P-82.
The Blue Bird [link=http://www.balsapr.com/catalog/Servos/bluebirdStandardServosView.asp?ProductId=U093661]BMS-620MG[/link] servo has metal gears and a torque of 126oz/in on 4.8v or 144oz/in on 6.0v. A great value at $20!