Pila range and how?

[M. Demetrius]

That makes sense, Robert. Whether the javelins/plumbatae were clipped or belted, or quivered, or whatever. They are stand-off weapons, and except for the really rare ambush, they'd be sent toward the enemy lines before the shield needs to be used in hand to hand fighting.

So has the thinking reverted to a few plumbatae put on the back of the shield? I still think, marching and carrying a shield laden with a kilo or two of missile weapons would add to the left arm fatigue considerably. I'd be trying to figure out how to carry them some other way pretty quickly. A shield is sort of a clumsy thing at best.