Check the neck relief first: the classic way is to hold down the low E string at 1st and 17th fret. Then look at the gap between the low E and the 6th fret. This should be very small, just so you can slip a business card through. Any more space than that means you should tighten the truss rod. My experience has been here in Sweden that neither shop nor the average Joe knows a lot about these guitars. So you find unsold avalons in shops with awful neck relief and high action and the owners go "it's supposed to be like that". Some don't even know that the truss is adjustable.
I recently bought a used A25 in this condition. I tightened the truss and removed the shims and now it plays like an electric almost.
Last edited by frankhond
on 21 Apr 2009, 18:35, edited 2 times in total.