I just got an Arabic Oud, I recently notice that my 5th string is off tune when I tune the string. That would be in the 3rd course. I decided to put some small piece of paper under by where it touches the bridge (top of the handle). It worked, I am getting a perfect sound when tuning the the string. Then I decided to place a tiny long piece of paper under the the whole bridge of the Oud, but unfortunately the other strings are now messed up.
So what do you guys recommend me to do, buy another bridge or should I just keep a small piece of paper under the 5th string only ?