Blade Fury can't level past 4?

Hey guys,

I've recently started pumping points into Blade Fury, but when I try to put a fifth point into the skill it tells me "Previous skill insufficient," which means that I need to put points into previous class skills before I can continue pumping BF. The problem is that I've already been putting points into other Blade Master skills. Is there a condition that I don't know about?

You probably used a CS book. Those remaining points are to be used on those specific jobs, I'm afraid.

yep, basically when you assign your SP, you'll have a few at the end depending of how many CS books you got, you can only put these SP back in their suppossed level, so if you used 4 books, you'll have to spend 2 points in III, III+, and 2 on II, II+