Xavier
I've just seen a newish ELA in a hanger where I'm working I couldn't talk to the owner but remember he complained about the rudder buffeting the last time I was thereHe even talked about cutting the rudder and tail to make a balanced rudder.
The guy I was working with told me that ELA had supplied him with a new rudder that had some sort of offset hinges. I looked at it and couldn't see anything that was obvious to me but did see the old rudder in the corner of the hanger so that part of the story is true.
I was also told that the owner found a crack in the welds in the tail boom and had to weld the strengthening piece that ELA are quietly offering to anyone who finds cracks in the tail boom. We've had at least one fayality in France with the tail coming off due to bad welding.
I left a voice mail with the owner asking him to ring me, if he does I'll let you know what I find out.
It seems to me that ELA have a problem, they know about it and have a solution but aren't telling anybody about it. This seems to be typical of them hiding problems from their customers. I've given up trying to work with them, they're the worst vendor I've come across so far and I wouldn't recommend them to anybody.
You speak Spanish so should be able to communicate with them ask them about the ELA at Lens in France. They speak very little English and non at all once you have a problem they just stop answering your emails.
Mike G