Well Wouter never said they are better, So its my error, or typo. What I meant to say, is, Wouter, how would you compare the Blade's rudders verus the AHPC rudder setup you have on your own boat.
You have already mentioned once, that the AHPC setup is far better than the McKenzie setup which comes stock on US Blades. Obviously by looking at the photos those are NOT a McKenzie setup.