marlin55388 wrote on Apr 22^nd, 2011 at 4:17pm:

Carbon tubing, epoxy (west), and make the top hold yourself with wood (laminate) and the west. I think I remember seeing the tubing on Titanium Goat (may not be the right size) or could possibly source elsewhere or Bending Branches. The toggles could most likely be found at a decent hardware store or MacMaster-Carr. An archery shop that sells arrow shafting to make carbon arrows could cut the shafting for you.

Thanks for the MacMaster-Carr tip.  They do have the detent button I would need for the extension.

Titanium Goat does have carbon fiber tubing you mentioned, but .6" seems to be the maximum diameter.  Unfortunately, the aluminum tubing I'm having to fit is thin-walled and caliper says 1.08" outside diameter (inside diameter is just under an inch).  I'll try some other sites to see if I can come up with something a bit closer.  

I did do a quick check of the Bending Branches site, but didn't come up with anything (I'll recheck, however).

Thanks for the response.  Pushing the length of my 240 out a bit should flatten my stroke ... less wind-mill action.  That should make my rotator cuff happy.

dd