Sorry to beat this to the ground, but I have a dilemma. I've had Spirocores (Weich) on my bass that I use to play in church. Wonderful sustain, great for pizz. But when I bow (about 30 to 40% of the mass) yikes! Very strident in the D and G and I really have trouble making the D string speak properly with the bow. Obviously, I'd like some strings that are less strident than Spriocores but still have some of the sustain in a jazz string. I'm wonder if Obligatos would be the solution? Or Corelli's? I've tried Obligatos for arco...I didn't like them as much as Helicores but I could use them if I had to. Thanks!