I just got a NS5CRFM and I talked to PJ at spector and he said that the stock strings are light gauge. Well I changed the strings to a medium gauge. (DR Low Riders) I noticed that when tuning the 12th fret was sharper then the open so I went off to set the intonation. I think I did a pretty good job at this as now the 12th fret registers the same as the open string(or pretty damn close) but now my problem comes with the action. I was getting a buzz I think it's because there were light gauge strings on and I replaced them with meduim gauge. So I raised the action. but now It seems uncomfortable to play. I have a cheaper korean spector(neck thru) and the action is perfect so I'm comparing it to the action on that bass and I'm not pleased. Before I changed the strings I took it to guitar center to see if it did need a set up he said the neck looked really good. Now that I changed the strings I really want the action low again but without the fret buzz on the lower registers. What should I do? Should I just bring it to a shop and let them set it up anyway? I just don't want to screw up the neck by messing with the intonation and action too much if that's possible. I'd really like the action to be the same as on my cheaper korean spector.