I think it is a great idea and the additional cost is minimal.
I just have a quick question, that if you would prefer, we could take offline. I will post it here and if you find that you want to discuss privately, then just send a reply via a message.
Couldn't this functionality be achieved in software? Do you have 3 additional i/o pins available so you could connect the other 3 universes to each of the PICs and select the universe in software? I am not taking a stab at anything you are doing, just asking a question.
Thanks,
Charles/Egenoup