Hi everyone, I'm new here. need advice.. and first I'll sum up. I've got a "just out of warranty" Ibanez Sr505 with a neck problem. this bass is near mint, want to save it. the "B" side (top while playing) of the fret board is nice and straight (removed neck from body) but the "G" side, first 3 frets from nut dips a little when sighting down edge. so looking from bridge end, down edge of neck, the last 3 frets dip down, then from about the 4th to the bridge is straight. I tried a photo,,, hard to keep all in focus but you can see the "dip" it's about just shy of 1/2 the thickness of the fret board. so i get string buzz with any acceptable action on the smaller strings. Ibanez offered to sell me a new neck for $600. Ha! I say. so I'm thinking about removing the fret board and block sanding the neck to level it. need advice. would that be the way to go? thank you.