RM,

Looks like you are doing a fine job with the kit!
Only 1 Cadence is flying at this time. I know of 3 other kits that have been purchased including yours..one of which is nearly complete.
I have been flying and experimenting with the first prototype built by myself and a good friend. He flew it to 7th place in Masters at the US Nats back in July.

The design concept was to allow nearly any powerplant to be used and to give the builder a bit of a blank canvas to work with. Minor changes to the fuse profile etc. are quite easy to suit one's taste.
The proto I am flying is very light (foam coring as seen in first posts I'm sure helped) and powered currently with a Scorpion outrunner...it has also flown for testing reasons with a NeuF3A.
I will say that the proto flew very well without any fins and/or canalyzer mounted in the canopy. This is the way it was flown at the US Nats. We attempted using a canalizer and found it did not suit my taste..very yaw and pitch sensitive. We have since applied a simple fin atop the canopy and below the belly, both slightly aft of the cg. Testing so far in this configuration has yielded a very sporty "F17" airplane, although now I would like more a pinch more yaw stability...kind of a give and take with any plane capable of the newer FAI maneuvers. I will be updating the design slightly sometime in 2016'.

Happy new year,
Mark