1) Schiltrom had to go. It only works properly in conjunction with short_pike, and short_pike & most barbs don't mix, IMO. Therefore, no more schiltrom. I apologize to everyone who loved that formation and all the warband units that had it.
(See more here: http://forums.totalwar.org/vb/showthread.php?t=88859 )
2) Apparently Sinhuet's formations contain a few errors of misinterpretation on his part. After an incredibly boring hour and a half spent macro-ing through all 20k lines of the AI formations file, I think those have been fixed. Ranged units should be more well-behaved now, generals should stop suiciding quite so determinedly, and other units should behave better in some situations.
(See more here: http://www.twcenter.net/forums/showthread.php?t=188916 )
btw, I use Notepad++ for my text editing. Were I doing this in plain Notepad, I would be quite mad by now. As is, I'm just quite tired. 'Night, all.