I think I answered at least half my question here, looking at the 'mystery middleweight' pic viewtopic.php?f=16&t=15571&start=0&st=0&sk=t&sd=a
So it had truss rods...my dad made some nice looking chrome trussrods for his '60? Schwinn Hornet from some common tubing & hardware (for the fork ends). I'll have to see about that.