Go to http://www.proptwisters.org/rds2/. Under the main INSTRUCTIONS a new page has been added at the end of the material that explains how the RDS can be used to directly open and firmly seat spoilers without the use of strings, plastic tubing, rubber bands, weights, magnets, springs, torque rods and other things that don't work well. No Drive Shaft or Pocket is used either! You can use those tiny micro-servos, but will have to custom spline one of the Splined Inserts to fit as explained under the CUSTOM SPLINING paragraph in the main INSTRUCTIONS. Takes about 2 minutes to do it, so fret not. Also the DESCRIPTION page, the one-page overview, has been redone. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]