Mike,
A factory built CarbonCub and a kit built CarbonCub EX are not totally identical but they are very close. The major differences are these: 1) The kit MAY l end up to be about 20 lbs heavier depending on choices made during the build; 2) the EX uses the horizontal stabilizer from the TopCub with its heavier brace wires and 6" greater span; 3) the gear legs on the EX utilize our 3 extended gear struts. Performance is essentially the same for either airplane and is exceptional to say the least.
The reason for the differences is that a kit builder has the option to certify his kit to 1865 lbs gross weight as an experimental amateur built airplane should he opt to forgoe the LSA and Sport Pilot option. When we gather the kit parts at the factory, we do not know what every builder might want to do and in fact, the builder may not know either until he is well into the build.
Hope this helps. Good luck and be careful in Afghanistan. We'll talk to you when you get back. If you have any other questions, feel free to post here in the forum or email me.
John Moreland
SWT Aviation (FL)
SE Regional Dealer for CubCrafters
JohnM@swtaviaiton.com
www.swtaviation.com