I've suddenly heard two opinions regarding the bridge angle. The angle I'm referring to is the tailpiece side of the bridge. 1) Should be 90° 2) Should be slightly less than 90° My bridge is currently slightly less than 90°, meaning it has a slight tilt toward the tailpiece, away from the fingerboard. The feet remain perfectly flat against the top while in this position. So, what say you? Is this angle a problem? Is this acceptable so long as the feet remain flat? Is this a matter of ideology and either are fine?