OK, last night I changed the strings on my borrowed Chinese carved bass of dubious quality from D'Addario Hybrid Lights to D'Addario Orchestral Mediums. It was a positive difference for my type of playing, which is all symphony/chamber work. The sound is now fatter and less harsh, and the bow response much improved. The pizz sound is more appropriate for symphony/chamber work, too. Less of the metal twang and more of a woody sort of thump with a pleasant aftertone. The Hybrids tended to "ring" a lot, which was annoying. For example, if I played for a bit on the top two strings, then suddenly stopped, the bottom two would still be vibrating, a lot. The Orchestrals vibrate sympathetically, too, but not so enthusiastically. The switch from Light to Medium was a good one, too, since now the strings don't feel squishy under the fingers. That was sort of distracting. This is not meant to be construed as saying that the Hybrids are bad, just that they probably aren't the best thing for arco-only (including "orchestra pizz") playing. I so wanted to move away from the Hybrids, that I took them off and installed the Orchestrals (one at a time, of course) as soon as I got my hands on them, which was about an hour before a rehearsal! Once I tuned them up, I had a bite to eat, tuned again, and went to the rehearsal, where I barely had to tweak them at the rest of the night. I'd never have tried that stunt with Eudoxas.