I stick to undamned decoders as much as I can, but 2 UD decoders and a separate IO board is a lot compared to a single PCB like this. It's unfortunate. I am holding out hope that the device continues to develop, and then I'll get out the ones I purchased and revisit it. But for now, they sit in a box.I definitely wouldn't recommend it in a tournament setting unless you have a predefined setup that is all pre configured and users have to use the sticks plugged in.
I've tried replicating a tournament setting at home and I personally found it to be a dog's breakfast, in my opinion, it's 100% not tournament friendly