Hey guys. Recently I got a Gothic V. It's fantastic but I'm having trouble getting the low string to intonate. It's tuned to C standard with a 62 on the low C. When I fret a note at the 12th fret, it's slightly sharp. Usually I would just tighten the intonation screw at the bridge but it's as far back as it can go, yet it's still out of tune.
What can I do to rectify this? Would a slightly lighter string fix this problem?