I want to report back and thank everyone for their help. I got the circuit working consistently. First, I read about these LGB switch machines and supplementary switches. The supplementary switch, being mechanical, creates mechanical resistance on the switch machine, which was causing me problems. Fortunately, LGB solved this problem with a crazy device called an EPL-Booster (LGB 52750). I bought one of these and ran the AC to the switch machine through it. It makes the switch machine "snappier". I have no idea how it does it. I found a schematic and it is loaded with diodes. Right now, I am using 24VAC accessory power, which is beyond the stated specs for the unit. I may try backing that down.
Second, the switch threw great in one direction, but had problems in the other. It seemed like the power was cutting too soon to the relay, as we discussed earlier in the thread. I tried Keith's method of adding a diode across the relay. It did seem to add a delay, but it was too short. I then added a capacitor as John suggested. I had the 47uF caps that Stan recommended and used one of those. It did the trick! The switch throws great in both directions!
George
