Will Nexon put DB skill books in CS?

is tornado spin pre-req for certain skills??

also doesn't db job advancement require u to spend all ur sp from previous job in order to advance? If that rule applies to DB then you MUST purchase all skills

Tornado spin isn't a requisite of any skill. You can save SP, but only from job to job; first job SP can be used on second job, second job can be used on second+, etc. etc.