[quote name='Beedster' timestamp='1386682818' post='2303018']
It can't be worse than it is. Of all the questions I have about the modifications to this bass, the one I find hardest to answer is that of why put a rectangular lump of maple in the middle of a beautiful dark wood veneer? Stain's not the best solution for sure, but it's a first step on the path
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Listen, the solution is simple. Simply have the maple routed out, source some Wenge (your top is Wenge btw)...match the grain as closely as you can, shape the Wenge, glue into place, plane then sand smooth for a perfect patch up.
Its not exactly the low cost, or simplest way to go...but it is the best way. Any luthier worth their salt could do it in a day. Trust me, I build furniture.