Been thinking about using TI jazz rounds for tuning Up to D-G-C-F from B-E-A-D. That's right, putting the B-E-A-D on a four string and tuning up tp D-G-C-F. I like that tuning and think the TI's gauge would be about right and the (normally tuned) low tension would end up being reasonable. I tried tuning the regular four string set up to G-C-F-Bflat to get a feel for the tension. It was a little tight but not bad. Anyone else try this with TI's or anything else?