Like R-a said, bare shafting at 40 yards doesn' t tell you much that bare shafting at 20 won' t. I' ll fling a bareshaft downrange to 40 yards once in awhile just for the helluvit. If it goes squirrely, I know it' s time for a touchup tune.

If you absolutely CAN' T get a bareshaft to fly straight beyond 20-25 yards, then something is off somewhere. I' d suspect arrow spine or too low an FOC.