I bought a 16-1/2" unfinished "white" viola from a Chinese seller on eBay over a year ago. I bought it because I loved the look of the tight grained spruce top, the beautiful flamed maple on the back, and especially the fancy inlay. I have never tried any kind of project like this before, but after receiving it I realized that I had gotten something that was going to be more work than I bargained for. The fingerboard had a big hump in the middle of it. I double checked that it wasn't just warped, but no, the bottom was flat and the just the top had a big convex hump in it. I put it in the closet and decided to buy a much cheaper white violin to practice on and learn from before risking my luck on this nicer project.
So now, over a year later, I took it out to see about fixing the hump and I noticed something I had not seen before: the fingerboard also has a long crack in it. I hoped that it was just cosmetic and I started aggressively sanding down the hump. But the crack is still there even after removing almost 1.5mm of thickness. I had saved the eBay listing photos when I bought it, and I now see that they cleverly avoided any view of this section of the fingerboard. I bet "Master Song and his 2 right hand apprentices" knew all about the hump and the crack in it - and that is how it ended up as a DIY "white" viola on eBay rather than a finished instrument...
Is there a way to fix it? Fill it with CA glue? Would I be better off to remove it and put a better quality piece on? I emailed the seller asking if it was just "tack glued" and he replied, "No, it be well glued." So that solution won't be easy. Maybe I should just ignore it?