So I've thought about it more.
Here's what really irks me about the random dice plan: we have no way of knowing if the IC is protected on any given night.
I understand that some of you are holding that up as the great thing about it -- that is, if town doesn't know, neither does scum. But, well, it negates the use of the Watcher 100%. It leaves open the IC for possibly dying any night of the game.
I understand the risks in the current version of the color plan. If the random assignment of colors includes three scum, game over.
What's nice is, well, let's do this:
green/red/blue on N1. Blue is town, green/red don't exist (so is therefore scum).
So, scum knows there will be exactly two layers of protection on the IC. They also know that in the next two sets of three, no matter what, the IC is protected by two or more. So, they know for three nights, they can't kill the IC.
That's the big issue, right? This also happens if there's only one scum on the first night. If there are no scum on the first night, the possibility of the IC dying is higher.
Thing is, we catch scum with this plan, and we FORCE THEM TO USE SHOTS.
And here's how: if the watcher is watching the IC, he expects to see exactly 5 people. Himself, the Doctor, and 3 1-shot doctors.
If scum is one or two of those 1-shots, they need to either target the IC or not.
If they don't target the IC: the watcher sees less than 5 targeters.
If they do target the IC: they have to use an action! So, that's the factional kill...and? Roleblocker. If the Goon and the Strongman are stuck in the same group? One CANNOT target the IC.
Once we have that, we can full claim the yoshi colors and catch scum.