I'm trying to find a semi-efficient way to string my basses. I've been using 45-105 (125 B) DR HI Beams on EBMM Stingrays in BEAD/EADG but I'm giving drop D a shot and think that I need a thicker lower string. Too loose now. DR makes extra heavy in 50-110, so I could just pull the "E" out of that, but at that point I'm buying 3 sets of strings for two basses with 4 extra strings, only one of which seems useful (45). Not the end of the world. Doesn't seem like you can buy them in singles from DR. Open to suggestions.