p.25 of the current Bass Player- Billy Sheehan in a new Rotosound ad. I wonder what the story is behind his return to Rotosound Swing bass strings- previously he quit using them as the quality control wasn't good enough; There are rumors out that you may be leaving Rotosound. Is this true? Yeah. I feel bad about it because Rotosound has been so great to me and they were my first endorsement. I love Rotosound strings but they have a problem with quality control where a lot of times you will get a dead string in a set. That started way back in 1984. Actually when I first started buying the strings and paying full-price for them, we had that happen a few times, which was very painful, because at the time I was pretty broke. Then when I got the string endorsement and started getting them at a reduced price, we still got dead strings. Then when the endorsement expanded and we began getting them free, we were still getting dead strings! I started getting upset when they began putting my picture on the package because people were out there buying them and getting dead strings in their sets. Each time I brought it up to the company, Rotosound would insure me that they fixed the problem and they would for a short time, then the dead ones would start showing up again. So I had kids coming up to me after the show saying, Hey I bought your strings and there was a dead one in there. So I would have the crew guys go get them a new set. I felt so bad about it that after a while I just had to leave Rotosound. They are a great company and I love the strings, but they simply have a problem with their quality control. I dont know if they are working to fix the problem, but in the mean time I needed to get a string that was consistent. Yamaha at the time did not have strings out in the States-they were just made to put on their basses and for Japan only. So they made up a set and their intonation and tuning is perfect. The new Yamaha strings are awesome! after using Yamaha strings he had a signature set of Snarling dogs strings, but now he's back with Rotosound, it seems. certainly I've had no problems with the card-packaged newer sets of Swing bass, so maybe Rotosound have improved their production techniques.