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Roberto,
I totally agree with your last paragraph.
"I also believe that using eccentric bushes to change wing incidence is not just poor practice but quite potentially dangerous. Perhaps Lancair Company might give the details of who in the Company has analysed this procedure, their qualifications and the analysis results including but not limited to the load carrying capability of the twisted spar at it's maximum load, the stall response of the asymmetric wing and stall progression from root to tip as is the design intent, the stall response under gust loads upto the structural limit of the aeroplane (the top of the green arc of the ASI) and beyond, the stall response with flaps partially and fully extended, the consequent differences in flap rigging and aileron rigging etc."
Some of the things that come to mind...
If you "tweak" the wings to get it to fly straight, you have only solved the "flying straight" problem. But at other speeds, with the flaps deflected, even different angles of attack, the wing may respond differently. My biggest concern is how the plane would respond at slow speeds, near the stall.
When the dust settles on the incidence correction thing, I'll likely demand that Lancair machine me some custom banana brackets with holes offset by the exact amount of my eccentrics.
Mike
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