I' ve reworked personally the EB stats altering totally the EDU & descr_projectile new, rebalancing all the game for the bi.exe, using the short_pike and shield_wall ability.
My first aim was to increase the effectiveness of artillery and missiles (from a min value of 7-ap attack of simple slingshot levy unit to a max value of 26.5-ap for cohors praetoria's pila). Then I've changed all units' spacing and training. Added the shield_wall to some units, warcry, berserk to units who deserves it, according to their description and role on the battlefield. I've put to classical hoplite units the short_pike attribute, only to "pure" ones, those without secondary weapons. Changed from "light_spear" to "spear" for "pushing" units, like phalanxes, hoplites, Helvetians, Arjos and similar. Changed all units' number of turns to build, from 0 to 3-4, depending on how many weeks were needed for training or mustering. I've also modded navies, from cost to train, upkeep, turn to build and number of soldiers per unit.

The last problem are all those "hybrid" units, like Agema, Iphikratean, Hipaspistic, Syracusan, Massilian, Indogreek, Sacred Band, Persian, Helvetian, Getic, etc. Not enough phalanxes, not enough hoplites, not enough loose or dense, static or mobile, I' ve left them as they are.

Altering density seems very good. I'm thinking also about dense sword-fighting units, like gladius infantry: I've always hated the way legionaries break formations in melee, spacing each other without the guard mode. I want to see them holding the line, at least the post-marian ones...