So far so good. Spent half an hour adjusting movement speeds yesterday, and combined with more ammo for "pure bow" units it seems very balanced. Still needs some tweaking, but this is what i have done so far:

1) All foot units with 3 or 4 armour points have been reduced to 4/8/9 (walking, running, charging)

2) All foot units with 5+ armour have been reduced to 3/7/8.

3) Longbows carry 48 arrows instead of 28, all other "pure bow" units (e.g desert archers etc) 40 arrows. X-bow units have been kept at 28.

What i have noticed is that missile units get off an extra 2/3/4 shots before the foot unit can close in. Also the AI tends to make its units run a lot sooner, meaning they are more tired by the time they reach my troops.

When attacking you really notice the extra damage from missile fire and it makes the experience a lot more tense, especailly when attacking a up hill.

One things for certain there is no MAA rush!