I've searched and read all the threads on dark strings (NOT strings for a dark bass). What I've gleaned is that Pirastro Olive is considered to be probably the darkest overall, for pizz and arco, without going to a full gut set. Do I understand correctly? My goal is to darken the sound of a full ply bass. I've been using Spiro mediums and EP lights. I typically have the string height low, and play 100% pizz on this bass (Americana. bluegrass, folk, some pop covers). With Spiros and EPs the sound is very articulate, resonant and defined. Great sustain and volume (it's a 7/8ths). I understand the drawbacks of the Olive set - high price; some tuning instability, etc. But I would like confirmation about the overall tonal quality. I also understand each bass is different. Any thoughts/experience would be appreciated.