I'm thinking about using the following speeds:

Code:
Slow infantry: Nage Yari and Naginata
	walking		100%	3.7 mph
	running	 	160%	5.9 mph
	charging	170%	6.3 mph

Normal infantry: missile units, Te Yari
	walking		100%	3.7 mph
	running	 	180%	6.7 mph
	charging	200%	7.4 mph

Fast infantry: No Dachi, Warrior Monks 
(missile units are intentionally left out to avoid Benny Hill situations)
	walking		100%	3.7 mph
	running	 	200%	7.4 mph
	charging	220%	8.1 mph

Heavy cavalry: Daimyo's bodyguard (and possibly Heavy Cavalry) 
(if it isn't fixed in the patch that formation is broken up because 
of different walking speeds then the walking speed will be 100%)
	walking		130%	4.8 mph
	running	 	360%	13.3 mph
	charging	390%	14.4 mph

Cavalry: Yari/Yumi Cavalry (if it isn't fixed in the patch that formation is
broken up because of different walking speeds then the walking speed for
Yari Cavalry will be 100%)
	walking		150%	5.6 mph
	running	 	400%	14.8 mph
	charging	440%	16.3 mph
Of course it needs playtesing, but it saves alot of work if I can get the animations right with the first try. So any opinions?