Are you using two flatwound or just the one? I switched my new bari back to Living Water after experimenting with some SouthCoast heavy strings, and I'm kind of missing the clear low-d sound. The main problem with the SouthCoast strings was the horrible finger squeak on the third string, so I'm thinking of maybe just using the wound 4th. Also, what are you using for the treble strings?
I've tried both ways. With just the one wound string you do have to be very careful when doing finger rolls to match the volume across all four strings - with both the D and G strings being wound that is less of an issue. Either way sounds fine strummed. Since I do a lot of finger rolls I currently have it strung with the CF strings on both the D and G.
For the treble strings I am using some fluorocarbon fishing leader. Here are my baritone "formulas" for linear and reentrant DGBE tunings:
Linear:
D CF35 (Thomastic-Infeld "A" .035" chromium flat wound)
G CF30 (Thomastic-Infeld "D" .030" chromium flat wound)
B FC90 (Seaguar "Blue Label" 90lb fluorocarbon leader - .0358")
E FC80 (Seaguar "Blue Label" 80lb fluorocarbon leader - .0319")
Reentrant:
D FC80 (Seaguar "Blue Label" 80lb fluorocarbon leader - .0319")
D FP130 (Seaguar "Premium" 130lb fluorocarbon leader - .0410")
B FC90 (Seaguar "Blue Label" 90lb fluorocarbon leader - .0358")
E FC80 (Seaguar "Blue Label" 80lb fluorocarbon leader - .0319")
These sets work well on both my Mainland (short 19.5" scale) and Pono baritones.
Here is the reentrant set on the Mainland
https://www.youtube.com/watch?v=yqOea8cinmI
I thought I had a recording with the linear set on the baritone but it turns out not - both of my Pono videos were made right after I got it and with the original strings.
John