ok, I can't even tell what those numbers are, they could be 6's, even if they were 9's it really doesn't matter to me, Ninja's are just an overall better class then champ, you get an experienced champ to fight an experienced ninja and more then likely the ninja will win every time, because of cicada, and every good KS ninja has a smokie card. And also, this server and iRO are a lot different, that 3x drop rate can change a lot of things, and also the events that drop OCA's, rare equips, OBB's, and OPB's. Once again, I will say, Ninja is probably my best class, I know more about them and how to use them then any other class, most people have never used them before so they don't know how they work, but I've made multiple ninja's and know how they work. And here, go to this site, it shows just about everything about a ninja, look through or just even look at killing strike.
http://ro.doddlercon.com/guides/ninja.html