I have an important gig coming up playing with Vanderlei Pereira, brazilian jazz drummer who commented how soft my sound was in rehearsal. I agreed. My strings sounded dead and soft (1 year old Evah Weich) so I made the jump to Spirocore 42 mittel, and I'm VERY happy with the sound. I play a Hybrid Upton Bass which has poplar sides and back and a spruce carved top so its already a dark sounding bass but with the Spirocores on there it sounds just right! I was afraid "mittels" would be too hard on my fingers, but the strings are actually EASIER and smaller than the Evah Weichs which made me pleasantly surprised. Okay End on rave.