I'm thinking about experimenting with 5ths tuning (I teach orchestra so I'm already comfortable with 5ths on cello.). I can't have my bass always in 5ths though, since I teach private lessons; I'd also want the flexibility of going back to 4ths depending on the situation. I've seen the video using the Hipshot FreeRange Xtender to switch back and forth quickly, so I know this is possible. What strings would make the most sense to use for this purpose, and would switching like this be ok for the health of the bass? I assume you'd use the heaviest strings possible for the E and A so they're not completely floppy when tuned down to C and G, and a solo string for the G that could easily be tuned up to A. I imagine spiro starks would work well for E and A, but wondering if Mittels would work too. Any ideas would be appreciated! BTW I'm playing on a 60-year old carved German bass currently strung with Evah Weichs.