There are times that I use a capo. I have a friend (retired pro) that feels that capos don't belong on an electric, but hey, if Keith can use one on a Tele who am I to say you can't. Anyway... I have a Yamaha Revstar RS820CR that goes flat whenever I put a capo on it. I can use either a Shubb or Kyser and the same thing happens. They both work just fine on my G2622. I can move it close to the fret or back from the fret and get the same result. Flat. I have to retune it with the capo in place and be careful not to bump it. Any suggestions to help with this? A different capo? Or??? Thanks in advance.