I have had some time to re-visit my extension design. I have made it much beefier. The only think I need to tackle is the thread starting position. When fully tightened down I have an undesirable offset. Can anyone else chime in that uses a similar design. How are you centering your stick with a one piece extension?
https://www.dropbox.com/s/s4u6lob4ea9hks8/2013-07-16%2007.12.42.jpg
https://www.dropbox.com/s/dmvytq1basxdy69/2013-07-16%2007.12.55.jpg