Paul thanks for your answer.
Question - could or should your PRA do more to help spread the message about this issue - does it post any safety bulletins, ideally online that can be checked as soon as it's uploaded rather than waiting weeks for a print publication ?
I took a look at the LAA website - the LAA manages kits, homebuilts, ultralights and odds and ends on permits here in the UK. The LAA also allow after engineering/structure tests new types of kits, homebuilts, ultralights ( a look on their website shows they have 20 or so new types going through this process currently including the RV-12 ).
The LAA also has an airworthiness alert page where safety problems can be easily disseminated to the many thousands of LAA members - among their current listing is a gyro related issue with Dragon Wing rotors, plus an alert re Rotax 912 and 914 engines that can be found in thousands of light aircraft and "turn key" gyros too.
These might be of interest to those of you out there alone in the US experimental sector.