CA should lower the lvl 9 clan spec upgrades to lvl 5 for all units with a base price over 1k. Units such as Elite infantry which cost 1170 and 1280 koku are hardly ever used, because of the following: Foreign marines are plainly better in every aspect. even a lvl 5 foriegn marine tops a lvl 9 elite infantry and still cost about the same or less. This will create more variety for players to either choose a
1500~ lvl 5 Elite infantry or a lvl 9 1300~ Bear unit,
Lvl 5 shogunate guard cav over a lvl 9 imperial guard cav,
lvl 9 sharpshooter over a lvl 5 tosa/Yugekitai
This idea will surely help the Imperial/Shogunate clans have much more influence over player's armies.
Though if you see any flaws, do tell, but I am sure this would make the game much more diverse.