Your extendable tiller might not work very well. Despite it being able to fold in you still have to jump over the tiller extension during the tack. And you have to un-extend it before or during the tack. Very clumsy.
Better way. Check the following site and you will note the best tiller type -- one piece, non-extendable that goes out both sides. We used this type on the Shark Catamaran for years and it worked very well.
You will have to bend each side up a bit so when flying a hull the other end of the tiller is not dragging in the water.
Here is the URL
http://www.catsailor.com/waves/superwave_overall.htmlMary's description of the trapezing is spot on.
Rick