Hi guys, probably kind of a noobish question. I've owned my Schecter Custom-4 bass since 2005 and have yet to really do any kind of set-up on it. I changed my strings about a year ago and stupidly took off all the strings; ever since then it seems my action is ridiculously high. I also own a Studio-4 fretless that is super low by comparison, and much to my liking. Okay so how do I adjust the action on this dang thing?