Hi Destin, nice to see someone is giving a little love to the Shogun 2 realism aspect.
I tried out your mod and generally it is very nice and refreshing. I am playing only base campaign and have a few doubts about balance. First of all the ranged units are "jack of all trades" - their slow reload is at now compensated with high lethality of single volley but what is worse is their exceptional fighting skills. At now it is quite safe to field armies packed with sole archers or gunners as the approching yari will get a punch and when they get to you, sword wielding missile troops overwhelm them no matter what. Higher base stats of attack and defense for katana infantry means that if the enemy won't be facing the spear wall ideally on your front, or won't use it at all, will be easily defeated. What is even worse cavalry can not help you anyway in this situation unless used extremly caucious. Charging bow ashigaru against Guard cav is usually ashigaru win scenario.
It is certainly good that bow ashigaru is not killed in seconds and routed as in vanilla but apart from higher morale they should not be that though. At now you don't need to care for them as they're doing good on their own.
I look forward to the change in rate of fire as higher is certainly better, while decreasing effectiveness of one volley.
I am a big fan of Stainless Steel and both Jam's mods for Empire and Napoleon. I hope that this od will become my favourite for Shogun 2.