I need new strings for my bass. I play it exclusively in orchestral/classical situations, so arco performance is the biggest consideration. My problem is that my carved-top, solid flat-back bass is particularly bright sounding, and it's also fairly difficult to bow with the D and G in particular having a tendency to scratch and screech. So I need a string set that is super responsive under the bow and also as dark sounding as possible. I've tried the following: D'Addario Helicore Orchestra - These are my baseline. Tone and bow response are both just ok, but at the price it's everything I'd expect. Pirastro Eudoxa - I remember these being amazing in tone and bow response, but I only bought them one time years ago because I managed to get an amazing deal. Unless my situation changes drastically, I won't be able to afford them again. Pirastro Passione - These are currently on my bass for the first time. They sound better (and deeper) than the Helicores, and they bow more easily also. The D and G are still a little tough, but that seems to be more the fault of the bass than the strings. They've lasted a while, but when they started to die they went downhill very quickly. Some brief research has helped me narrow down the field of new string possibilities to the following (but I'm open to other suggestions): D'Addario Kaplan - People seem to really like these, especially for the price, and I've heard they bow pretty easily. If they're a substantial step up from the Helicores, the price might make them a top pick on it's own. Pirastro Evah Pirazzi - I see reviews specifically mentioning quick bow response and "gut-like" sound, but they're also commonly listed as good hybrid strings which makes me wonder if they'd be too bright. Pirastro Flexocor Deluxe - A lot of orchestral players seem to regard Flexocors as the industry standard and the baseline to which other strings are compare, but I've never actually tried them. The Deluxe set is described as being easier to bow than the standard set. I'm also still considering another set of Passiones, but I've only ever tried three different brands, so I like the idea of branching out. Belcantos got left out of the top three somewhat arbitrarily, but I've heard them described as dark and easy to bow, also. It's possible that lighter strings would make the bowing easier (I've always used mediums), but I'm not sure if I'd lose too much low-end or dynamic range if I switched to lights. Then again, the Eudoxas were particularly thick but still bowed really well. Can anyone point me in the right direction? Ultimately, I probably just need to get a nicer bass, but that's not in the budget right now.