I've got a MIM Fender P-bass. The thing still has its original strings on it. I dont know what size they are but I would like to change them. I have had some difficulty with fret buzz and keeping notes fretted without buzzing out (or should I just say, sloppy playing..) Anyway, would going down in string size help me out? And what do you think of Ernie Ball strings? I use them on my regular guitar but never on a bass.. Can someone recommend a good string size for me to go with, something fairly easy to play but still big enough to have a good sound? I play mainly blues, rock.. Thanks!