Hello. I am presently evaluating a 3MB Flatiron octave/zouk. Years ago I had a Koa version of this instrument and sold it. The one I am presently looking at sounds better than the Koa version, I think, but it has a satin finish, while the Koa version had a thin gloss finish. Does anybody know if the satin finish was commonly used on these Flatiron octaves? I thought they all had a gloss finish. (Perhaps the satin contributed to my perception that the sound of the 3MB is superior?) Thanks for your help.