Boom

I put the boom together.  The other day I cut a ten foot long Doug fir 2x4 in half.  I then routered out a groove down the center.  First problem was it shouldn't have been down the center.  Should have been near the top.  I'll address that later.  I put a long string down the center before I glued it.  After it was clamped together I tied a rag to the end of the string and pulled it through the groove to clear out any squeeze out that was inside.  I ran that cloth back and forth a few times.  The bore is clear...