Paul,
Thanks for the info for ordering the Versa Mounts.  While I'm placing  an
order with McMaster-Carr, I thought I would also buy the teflon for the slide
 throttle.  There is a lot to choose from and its pretty confusing.  Do
you have a part number for the stuff you recommend ??

Don

There are two ways of doing it. Make the slide out of solid
Teflon 3/8th of an inch thick which is the old expensive way.
3/8th comes in cheaper low tolerance material or more
expensive close tolerance material... probably milled.

The cheaper way is to make the slide out of 1/4 inch thick
aluminum and use a layer of 1/32" Teflon on either side.

Here is the procedure for doing that thanks
to Craig Smith. It is also the way our kits for the
two rotor are done.

This is the stuff I recommend.
http://www.mcmaster.com/#plastics/=5yakjv

Paul Lamar