Has anyone out there in the universe of innovative string addicts ever tried this mix? What I really love about the Red Mitchell 5ths tuning set is that low C. But I didn't manage to take the leap yet to full 5ths tuning. Has anyone combined it with GDA in 4ths? Am curious about it, but obviously the overall tension of the mix will make a difference. Today I strung up my steel string bass with the Red Mitchell medium low C (#3986 @ 67 lbs), Spiro Weich A (S38W @ 66 lbs), Red Mitchell D (64), Belcanto G (62). Tried to keep the tension as close to the Red Mitchell set as possible. Any thoughts or experiences? Thanks!