Hi, In my band we use drop-C tuning CGCF, and we're having a strange problem with the low C. We always have to tune the low C by our ears, since the tuner isn't accurate. This is only on the lowest string. The tuner shows the C to be a 1/4 too high. We have tried different tuners, everything from expensive rack tuners to cheap ones. I have tried different string gauges and basses, and it always ends up the same way. The guitarists in the band also have the same problem. So I'm wondering if this is a setup problem, or what can we do? I have played in Drop D an Drop A without any problems before. Any feedback would be great, thanks!