I checked out some other treads that said double bass strings shouldn't break very often. I got this set new about 4 months ago and the D string broke last night. (Kind of a fun challenge playing a set with only 3 strings, though annoying) It broke through both layers of the core right on the bridge, but not the synthetic wrapping. So, it didn't go flying off, thankfully, just a little pop. Just curious what an average lifetime of a string is. I play in a bluegrass band (almost no slapping and no bowing) for about 5-7 hours a week. I'm also pretty new to the bass, being I got my BM in jazz trombone. BTW, this forum is amazing! Lots of great info.