A unit of 30 archers isn't going to be as effective as one of 60. The rows beyond 2 suffer some penalty but aren't totally ineffective, why not just take the penalty and leave them in 3 or 4 rows? Some of the more advanced Archers are going to become expensive, ie Master Bowyer + Military Academy + Swordsmiths Guild + 175 Fl for 30 Janissary Infantry. Is it going to be worthwhile?

A 30 man Archer unit is going to have serious troubles, it will be outnumbered by almost every other unit, except Naptha Throwers and Hashishin. It is going to have serious morale problems when the enemy is near as it can be outnumbered locally by just about any other unit.

That being said, if you do cut them down to 30 then just change the preferred # of rows down to 2 [FORMATIONS_PREFERRED_NUM_ROWS( 2 )], then they will appear in battle in the formation you like. Half the cost, the upkeep will halve by itself. You might want to change the General Candidature? all to DISCOURAGED. Ammo is per man so doesn't need changing.... Thats it I think.


change
Cost
# of Men
General Candidature?
Preferred # of Rows