[HoneyBadger]

Well, I'm of the opinion that LA Jomon, and related Nations, should get an "air shield" bonus with their O-yori: a 40% air shield for their heaviest "samurai" armour, and a 20% for the regular samurai variety.

Also, Jomon could conceivably have a capital-only nagamaki-wielding unit, that would get a x2 bonus to larger creatures, if you wanted to mod one in. That doesn't sound like it would be too balance-destroying, and it's reasonable, for a Nation that had a history of fighting and winning against giant demons, and big ogrish goblins.