Sfarzo Z-40 Super Screamer Nickel Wound Lite, .009 - .042, 3040SSstar rating 4D.J. PrestonMarch 4, 2010For the working guitarist, Sfarzo is the new answer. Changing strings on a regular basis no longer requires a second mortgage. I've been a DR user for years but the cost and the recent packaging practice lead me in search of a comparable string with a lower cost. SFARZO ROCKS !!!!!