I've had two that behaved like that and going to a lighter gauge string helped the most. I agree the break angles make a noticeable difference at both ends of the string, whatever the gauge. Set-up is more than half the battle with some instruments. It is possible you won't get these fully to your liking ever, but it's worth a shot to try. No luthiers down there? You could(if money's good) ship it to someone, too. I recommend Mark Balash at The Berkley Music Co. in MI. Guy's a wizard, even on Ricky's.
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Josh
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Josh