Check out Snake Oil Brand - I have been using them for years (I've known Dean since he had Scalar Strings). Ben (D&L) did a check out of them against his DR Pure Blues & the SOB's kept their tone 3 times as long, even with his aggressive playing. I use several different gauges, Strats - 10,12,16,28,38,48 - Tele's 10,12,16,26,36,46 - PRS 11,13,17,28,38,48, Gibsons - 11,13,17,30,40,50. The 50's give a huge bottom end with my JTM 45 (especially if I add the Ear Candy 1x15 with a Sidewinder!