how to edit recuriment Ai?

i set feudal knights to low tech tree. so i can use them very well
in early campaign but AI dont recruit them.
i played campaign about 150turns but i only see 1 feudal knight that
recruited by ai.:inquisitive:
i think they are few expensive so ai dont recurit them
so i set their cost down. but still they dont recurit knights(cavarly.)

i dont really know why AI do that.
when 1.0, Ai recruit by order of costly. because of that
Ai have recruited so many siege weapon. cause they are
expensive and AI think they are good unit.:sweatdrop: i think.

in 1.1patch i dont know Ai's recruit order.
anyone know about that? can i edit this?

I would also find this very useful, since in the mod I am currently making, the AI is not recruiting higher level units, even though they have bags of cash and unit costs remain the same...

I think it may have something to do with the lines in descr_strat such as 'henry smith', etc.