Hi John,
 
Almost scared to head toward Florida - especially if there is a tail wind {:>).  Would love to come, but not really an EC2 expert - and can't even offer another pair of eyes - but could offer one eyeball (still works pretty good catching wiring errors {:>).  However, I am scheduled to host a meeting of some interest to the rotary community.  Butch Diaz designed a variable pitch prop hub back several years ago and we plan to meet this weekend to see if we can get this thing on a test stand and moving along.  So several folks will be converging on my workshop later this week (got to clean that son of a gun up!) to hammer out a program to move this through a series of tests.  Should they prove successful AND the costs can be contained, we just might see some of these come available.  That is all I can say at the moment.
 
Sorry to say, just a bit too much on my plate between now and flying to Lower Slobovia Outernational Flyin on Labor day to make it to Florida - wish I didn't.  Been wanting to see your set up.
 
Ed.