I was looking at a Sonex and asked about the owner flying off the hours of the newly built aircraft along with the newly built Aerovee engine kit. Here was his reply which confused me a bit... FAA requires only 5 hours flight time for aircraft registered as an "LSA". If the same aircraft were registered as "Experimental" than 40 hours would be required. Also as I mentioned earlier anybody can take the 16hr course and do the annual inspections for any LSA aircraft . If this aircraft were registered as "Experimental" than only the builder/owner or an A/P mechanic could inspect it.I had a long conversation with the FAA Light Sport Division about all these issues. Being registered as an "LSA" has a lot of advantages over "Experimental". That's why I chose to register this as an "LSA". Flying off the 5 hours just makes for one really fun day. I thought any aircraft built by an individual had to be registered as Experimental unless it was certified?