[cessnadriver]

I have seen this in other Cessnas. My C172 had the problem, although this Cessna has the eccentric bushings in the trailing edge of each wings. I adjusted the left (LIGHT WING) full down and the right full up. I KNOW THIS ISN'T THE PROBLEM YOU MENTION, BUT LET ME FINISH MY EXPLANATION. After all these adjustments my IA noticed my left flap was NOT fully UP in the tract. I replaced the flap and plane flys straight! So my advice is to make certain that your flaps (on the high flying wing) is in FULL UP position.
FYI.
BILLS