I’m not sure what you mean? Looking back at the OP’s photo’s, the cage WAS tied into the dash-board(a good idea that i am putting in my cage also) but still displayed exactly the kind of deformation /energy absorption that ITLKSEZ mentions. I‘m taking ITLKSEZ’s point to mean that outboarding the supports would have prevented or minimized the A-pillar’s movement because rather than simply relying material strength (which it is), it would also rely on mechanical strength by being tied into a node at the B-pillar, and therefore the rest of the cage “box”. What we’re talking about with the a-pillar, from my point of view, is basically a cantilever from the point at which the a-pillar attaches to the dash. It recieved a point load at the end of the cantilever and absorbed the momentum of the crash by deforming. Norcal69 has stated, tho, that this was an un-finished cage, and, as such, did pretty well all things considered.