I have a Q6 with DR Hi Beams, two Genesis 5's (chechen fretless and maple fretted boards) with DR Black Beauties, and a VJ with D'addario EXPs. Modulus sends them out with D'addarios, but I've found the DR's last a good long time and still have a nice snap after a while. I used to have Elixirs on and really liked them, but they were not long enough and the windings finished before the nut on the Q6 and the Genesis 5ers. The Black Beauties I've had on for more than a year and still sound great. That's with playing/ practicing a couple times a week and gigging about every 3rd weekend. The D'addarios have a nice sound ( I've used them for almost 20 yrs ), but the Black Beauties really turned these basses into funk machines. I wish I would get a set for my Q6 but they don't make one. I still use the D'addario nickles on my VJ because they just feel so good and familiar. Side Note: all my basses have Bartolini pickups and I'm running them through either an AG500, DB750 or SWR Baby Blue, so it is kind of hard to mess up the sound

Hope this is helpful.
Derrick
www.myspace.com/derricksbass