I just came across this site: Custom Bass String Configurator – Newtone Strings They make completely customized strings. Stainless steel, NPS, acoustics... Round core or hex core... Wound gauges from .018 - .150, in every even numbered increment (.044, .046, .048, etc.)... Option for taper at bridge end. AND they can make them in ANY LENGTH! I'm super relieved and excited about this because I have not been able to find stainless steel strings for short scale bigger than .105 for drop-D. Has anyone used these strings before? Any feedback? Thank you!