Well, I'd like to do both, but I don't exactly have too much spare time, so there's going to be some prioritising.. We shall see..

The echelon phalanx does work on defense, what with AI still being bit dumb.

You are right about outstretching, but if there's some reserves on AI's right flank... And if the phalanx is shallowed, it'd essentially cease being an echelon, and this would also close the opening created for cav.

I had a wedge phalanx in my mind, and I might do it later.. With cavalry support that *could* be something that players *might* have to outthink, something I'd like to see much more often.