I used to use nothing but Roto's 66 on both my fours and fives. I loved the sharpness of the strings. I liked how long they lasted compared to the competition. After about five or six years of exclusive use the prices started to get really high, and I fell out of love with them. They started to feel more tight than they had before and I no longer cared for their tone. I also never really got a great response out of any of my five strings with them. When I started stringing my five strings with La Bella's Hard Rockin' Steels my bass sounded like a completely different machine and thus have used nothing else for my five string basses. These strings bring so much character to my basses B strings. I read often about bass players hating the sound of Fender five strings, saying that the B sounds floppy and that it isn't very defined. My Fender American Deluxe (2008) has the best B string I have ever heard on a 34" scale bass period. I string through the body for added tension and the B string is tapered, it just brings about a tone that just lets my fivers sing. These strings have changed a lot for me and my playing. I strongly suggest that you give them a try if you have not already.
