I recently built a couple of Alder core bodies, one of which had a few strange 'figurings' running contrary to the wood grain. I checked these closely, and there was no sign that this was any kinf of crack, just some feature I've seen a couple of times in Alder. I even have a bass body from a large, reputable company that exhibits the same kind of figuring.
In this builders body, you can see the strange figuring circled in red, and the actual wood grain noted with green lines
the reason I am writing this is that one of these lines actually opened up while at the finishing shop in Dallas. supposedly it is about .002" wide and about .125" deep at the worst location. this is my first run in with one of these lines opening, so I'm not sure exactly what to do.
* fill the slight opening with Titebond, sand, and finish as usual
* scrap the body
* something else I haven't thought of
I will say that the finished body in the above image has never showed any sign of distress or movement, so I tend to believe that this will remain stable once a finish is applied.
any thoughts/suggestions from your past experiences would be greatly apreciated. I need to provide my answer to the shop on Mon morning.
all the best,
R
Alder - stress lines? 
