Bertrand : you are right.
robotech : The first pro4 protos ( even before the one I witnessed) had the whole TC3 suspension on a dual CF plate setup . Not sure about the drivetrain. If anyone has pictures of what I mean...
Agreed,there is a big part of marketing in these releases. I'd sure buy a Pro3 for the hell of it, if I found one super cheap.
The cyclone release seems more to me like a way to compete with the 415. Or am I wrong about the release dates ?