I was fascinated to discover ukulele strings composed of two stainless steel flatwound strings for the 4th and 3rd strings. These were combined with two plain clear nylon strings for the two high strings. This is another set from Southcoast ukulele.
The strings are the. The recommended tuning is dependent on scale length. They recommend Bb tuning for a 20 inch scale length which is about the scale of many baritone ukuleles.
This was a failed experiment on my cheapo Rogue Baritone! But maybe these would work for you.
makes an interesting guitar string set of mixed materials. I may have gotten the details wrong in the video, so here’s more information. The Classic S-Series Flat Wound Strings (Set No. KR116) consists of Nylon Tape Wound on a Rope Core for the three high strings and Silver Plated Copper Flat Wound on a Rope Core for the three bass strings.