I have a EBMM Stingray 5 HH tuned to A#C#G#C#F# with Power Slinky 135,105,85,70,50. I took it to get set up by a professional before my band entered the studio. I picked up the bass and it felt really nice and sounded good until i got to the studio and layed down some tracks. The 2 higher stings sounded fine but the 3 lower were sharp, especially the lower C#, and got sharper as i went higher on the fretboard. Anybody have any experience with this and found a remedy?