Will Nexon put DB skill books in CS?

We'll almost certainly have to get Slash Storm, Tornado Spin, Mirror Imaging, and Flying Assaulter from CS, unless they decide to add Hob King PQ with Dual Blade, or even bother letting those drop at all, and I somewhat doubt they will.
Sudden Raid and Thorns Effect are both 4th job skills, so those will probably have skillbooks dropping from bosses(Zakum, Papulatus, and Horntail primarily)/Leafre/ToT mobs like the other jobs.

So in other words, I only have to worry about slash storm, mirror imaging, and flying assaulter (I'm not paying money for tornado spin >.>). Will we be able to save SP via different jobs like most guides suggest? I.e., use SP from 2nd job in 2nd job+.