I've played Hofner basses for over 50 year. Recently I bought a Hofner Ignition and have spent the past few weeks trying to get the intonation as best as I can. I'm familiar with the bridge placement and adjustments, and somewhat with neck relief. I'm having a hard time with this bass. I put a set of LaBella Hofner flats light gauge on it. The A string in particular is a mystery to me. I have to tune it just a bit sharp in order to have the C at the third and the D at the 5th frets play in tune. Why? Does anyone know a good technique for setting the neck relief on these 30 inch scales? I can't seem to get the get the high B note on the G string to play clearly without very high action. Presently, I have the action set to the usual recommended 3 mm for the E string and a bit over 2 mm on the G string as measured at the 12th fret. The D string, when played at B produces some sort of strange sound. I filed down a bit of the bridge, on the tailpiece side, to keep the string from vibrating against the bridge. This helped, but it's still not perfect. Any recommendations? Thank you.