Carl's pike fix edited out the secondary swords entirely so they never put teh pikes away.

He eventually reduced the stats too as they became uber units that could slaughter anything (especially when armoured. I had much fun with the scots heavy pike militia slaughtering the mongols!)

I think it's still in his "bugfixer" all in 1 fix (do a search), but I don't know if it's compatible with 1.2 (post kingdoms) so i'm not running it at the moment.

There's various other things in there - and before 1.2 it had shield and 2h fixes.