I played one the other day, and re-tuned it in regular baritone intervals. Not sure what the actual pitches were, as I just tuned it to itself. It sounded pretty good that way, real nice for my fingerstyle tunes I usually play on my tenor.
This is an interesting concept that hadn't occurred to me, but worked well on the Kamoa when I tried it.
There are a couple of options for tuning.
Starting with the standard tuning of EADG, by dropping the top two strings a half step to E A C# F#, you have standard uke intervals, in "A" tuning.
The strings are high enough tension to do a dropped tuning to DGBE, baritone tuning (an octave down).
Works well for melody lines and arpeggios.
Strummed open chords sound a bit muddy, but are still in the range of the bottom four strings of a guitar.
Playing chord inversions further up the neck sound good to me.
I quickly found myself wishing the upper bout was cut away for better access.
The nickel flatwounds are comfortable, squeak free, with more sustain and volume than petrochemical strings.