I have a Squier Deluxe Jazz V that I got a while ago, my first fiver, that I string E to C. My problem is that I keep breaking the C's. Doesn't seem to matter what gauge string I use. I've used everything from .50's down to .32's. I haven't changed the nut yet to accommodate the different tuning and am wondering if that may have something to do with it? The strings used to just break at the bridge, and upon closer inspection, I found what looked like a burr on the saddle so I flipped it over and hadn't had any trouble for some time. I'm playing the bass more now, to the point that it's becoming a go to for one of my projects. I just broke two strings in the space of about 10 minutes and am getting seriously frustrated. These two breaks occurred in the middle of the string, near around the 7th-9th fret. Looking at the strings, the core broke on both of them. These were .32 Ernie Ball Cobalts. I'm gonna go broke buying single strings at this pace. Anybody have some ideas to what the problem might be?