Are they necessary for the shelf Bill? will they turn into a dust collection groove on a shelf? The V groove would be the lesser culprit of them and look good also
Not much woodworking happens for me during the "work" week, but I managed to make a decision on whether to bead or chamfer the shelf boards along the tongue and groove joint. I decided a small chamfer was needed to protect the edges, so I fired up the heater tonight and got it done.
I did not bother marking out the legs of the chamfer, I just eyeballed it, using one my favorite planes. One of the things I recently resolved to do was to be less "precise" and more fluid in my woodworking, trust my skill and not be afraid to make a mistake. I think it worked out pretty well this time.
It really is a very small chamfer, just enough to protect the edge. I am happy with the decision to go with the chamfer.