What you're trying to do is square up those crooked edges, you won't remove any more material where the gap is greatest, but you will get that larger gap consistently across the edge. You then have to live with it or fill it, I would fill it. If you want a natural/transparent finish, you should collect the dust from your sanding of the top, keep it in a zip loc bag. Use it to make a thick paste with some wood glue (the kind that dries clear), and fill the gap. Very surgical sanding will make the gap vanish. Do this after you've stained the surrounding wood, and match the gap filler with very fine artist's brush.
Nothing with wood is impossible...it just takes enormous patience at times.
Last edited by Island_Moose; 23-09-2015 at 06:47 AM.