um, Wind booster anyone?

Trip on the failboat? How often would you party a viper? Besides, it's actually equalizing characters (Dark Knights, marksmen, magicians).

I'm not entirely sure where the idea of balancing classes out makes sense. ok, it's nice that DrKs can attack a bit faster, but once again, axe saders get owned, same sas BW WKs (assuming nobody is using an RK).
this makes being 1h almost useless (in that a DS will have the same speed as an STS), and well rangers and marksmen will be even more ridiculously powerful. Claws aren't so much an issue, since they're already super fast. I just fail to see where the "balance" you speak of comes into play