Wow, Lightspeed Plasma III on a certified aircraft, or have you had your registration changed to the experimental category. Don't get me wrong, I have replaced one mag with an electronic ignition system on my lycoming O-320 for over 350 hrs, (in a Varieze) and the electronic ignition system runs markedly better than the mag. But looking at lightspeed engineering's web site
http://www.lightspeedengineering.com , They say on the first page that they make systems for experimental aircraft. I do know that there are probably hundreds if not thousands of these systems running on amateur built experimental aircraft from everything from O-200 continentals to TSIO-520 (Lancair 4's). These are probably well proven just from this track record, but I doubt this would ever persuade the FAA. I just wonder what criteria they would use to field approve them.