RE: Going CL with tis R/C model
Charles an adjustable outlet slider is just a means of angling the lines aft out near the wingtip and making it adjustable for different wind conditions. In other words as I indicated earlier the lines will not come straight out the side of the airplane ninety degrees to the fuselage but angle aft a bit.
If you hold the handle and have someone pick up the airplane then put tension on it you can see the airplane does slightly point to the outside of the circle and this is one of the factors that keeps the lines tight. The act of sliding the outlet guides at the wingtip aft will increase line tension in flight.
John