I will have to check that out. Shadow makes some innovative stuff and produces the system which is in my Kala U-Bass. It’s supposed to be a multi-crystal piezo with distinct and separate transducer for each string… and I really like the sound on that.
I currently am working with the Kremona UK-1.
It’s got a great sound, it’s very easy to install and is not in the way when not using it. It can pick up some “body noise” from playing, but I have managed to dial most of that out using an LR Baggs Para DI.
If I had to “complain”, the one thing I dislike is that it is a bit delicate. I have already smashed one by standing on the cord while I picked up the Uke to play. No fun when you’re in front of a room full of people..
I am in the market for another uke, so I will look at that when the time comes..