Hi Dave,
Thanks for the feedback about the forum. On rudder I would suggest using an Equalizer II. The way I would recommend doing this for the most servo power is as follows. First run one servo straight to the rudder output of the PowerExpander. Then run the other servo through an Equalizer II. At first leave the Equalizer unplugged and use your transmitter to center and set throws on the servo connected directly to the PowerExpander. Then hook up the Equalizer and use it to match the second servo to the first servo. This method puts both servos on its own, dedicated connection. You will get more power this way than running both servos off the Equalizer becuase you are not taking the two leads from the servos and necking them down to the single lead of the Equalizer II. Please let me know if you have any more questions.