Hey All, I've got a Classic Series 60's neck on my Robben Ford build. Only issue is the E and B strings sound like a sitar when I play them open. So, I have to replace the nut. I suppose I could repair the existing nut but this seems much easier. Being as I don't have access to it for a few days and I want to order a nut, do I want a curved bottom or a flat bottom as a direct replacement? LOVE these necks by the way! Thanks all!