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     Angier,
     
     I spent many hours fighting this issue.  I have the dual system
     installed.  The forces required to move the rudder were so great that
     you lost all feel for the rudder.  After touch done it was nearly
     impossible to avoid engaging the brakes while trying to move the
     rudder.
     I'll skip all the intermediate steps and describe the final
     configuration.  I have completely removed the return springs on the
     pilot side adjustable rudder pedals.  I did add two long, very week
     tension springs between the pedals and the firewall just to keep them
     from falling backwards with your feet removed.  I took the return
     springs on the passenger side and ground out the ID to reduce the
     material cross section from about .110 to .080.  I also lubed the
     nylon guide tubing with LPS2.  With these changes the dual system
     feels like the single set up with standard parts.  As I was working
     through this(9 months ago), Lancair was working on getting lighter
     return springs for the adjustable rudder pedal assemblies.  I am now
     happy with the rudder force and feel.
     
     Chris Zavatson
     N91CZ