Instead of m2i.. m2iw. iw being, in wall.

Or, the W2i. w being for wall.

So far, my two submissions would be the w2i/w3ti/w22ti, and the m2iw, m3iw, and m22iw.

As for the centers.. VP100iw, and vp150iw. or, iw150 and iw100.

Oh - and if by any chance the residents at Axiom are drunk and mistake this for a good naming scheme.. I don't need any inwalls if it wins.