I found this article in this month's Sport Pilot interesting. How the FAA thinks that certification can increase safety by 2X is amazing. The number of accidents attributed to manufacturer defects is so low as to be statistically insignificant. Also the cost of certification has two factors. Increased cost do to paperwork preparations and testing, but the real cost to us is the delay in getting products to market. A recent article by Extra Aircraft says they have been waiting for over 15 months for the FAA to certify the Extra 500. An aircraft that is already certified in Europe.
I hope that EAA will keep us informed on how the ARC progresses over the next year and the proposals that are being made.