Any comment on Robin's point that your magic missiles did more damage as they progressed, rather than losing momentum and doing less damage?
Sure. Thank you for the question, this is the best part.
Whatever caused the north tower gash started here, a projectile of some kind struck the face of this column hard enough to pinch the aluminum cladding that covered the steel, popping out the bottom at the seam.* It was very thin, much thinner than the wing tip of a 767 and it wasn't very dense, as evidenced by the fact that the steel behind it isn't damaged.
Considering the uniform construction between the left wing and the right, they should have left similarly-sized gashes - but that's not the case. On the left there's a little pinch but on the right there's a much wider gash. So what could cause a pinch on one side but crush the cladding on the other?
Compare again to the left:
So we have a big difference between the sizes of the imprints left by the wing tips of the "jet," and whatever it was that wasn't dense enough to do more than pinch the cladding on the far left, but as it moved right it became MORE dense, as can be seen by the sliced cladding just to the right of it (columns 151 and 150).
Moving to the right the bends and twists to the columns become more pronounced.
So what projectile is at once more dense and smaller in some places than it is in others? Whatever it was it was traveling at an oblique trajectory of say 10-15 degrees from parallel to the face of the towers:
As a reminder, a swept back wing, even if it could do such a thing, would have struck the columns on the opposite edges, to what the damage evidence shows:
There are very few things that can explain this damage. Only one that I can find. The damage to the cladding was caused by the impact of a small and lightweight missile wing, hence the light damage. Moving to the right, the fuselage of the missile, presumably fiberglass and aluminum, began to impact the columns, causing worse damage to the aluminum sheeting, as the denser materials within the fuselage of the missile began to impact the columns, the protruding steel sides of the columns begin to bend to the right. And finally as the dense metal, 900 lb. warhead begins to impact, the whole columns are flattened and sharply bent to the right, before the warhead was deflected and then detonated in front of the 9th column.