Okay today I was at Guitar Center and I was checking out the basses. I had my mind set to check out the Spectors to see if I really wanted one. Well I looked through, most of them were out of my price range, and then my eyes landed on one that was $250. If I remember correctly (I'm pretty sure I'm right), it was a Performer 4DXL in matte black. Well I tried it out, but couldn't hear myself over some kid who was slapping the hell out of another bass (I always end up near one of these people). But hey, I liked it from what I did try. So, what's everyone's opinion on this bass? Is there a reason not to get it? Is it promising for upgrades? Please do help. I wanna get this as soon as possible, since it was a green tag. Also, what should I look for if I decide to give this a complete inspection before purchase. And slightly off-topic, but what exactly is a detuner?