I've had an ibanez Sr-905 now since 2006. I bought it used off craigslist from a local guy after I went to look at a different bass he was selling and I'm still in love with it. Only thing I have changed is the preamp (now has a aguilar OBP-3). I have never had this bass set up once since the day I got it but it's gone through more string gauge changes then I can mention. Currently it has a circle k .150 set in A Standard tuning and I honestly don't mind the playability of it at all except that I may go slightly heavier next time. Here's the thing. I used to play in A Standard with .130 or .135 strings and when I put the .150's on it then it changed my world the tension was that much better. BUT I'm pretty confident that it was never intended to have that much tension out of the box without an adjustment. I have had this nagging thought for the last year or so that I should get it set up but I'm really scared that it will change how I feel about the bass. I've owned a lot of guitars and basses but never been as satisfied with playability as I am with this one. Should I see if the grass is greener and get it set up or should I leave it the hell alone?