Ask a Soul Master/Dawn Warrior Thread

Most of my questions are about soul driver seeing as how its one of the new skills a soul master/ dawn warrior get . How big is soul driver attack range ? Also does it stay the same or grow with more skill points added into it ? Last question about soul driver is, does it open more areas to train at as well as being a good main attack while waiting to open up branish? Also is about the skills gain at 100 and 110 , i may not be that smart but do the skills require skill books like the regular 4th job skills or are they all ready open like normal 2nd and 3rd job skills?