And the reason for the slipstream is so that info about the ColdCard doesn't leak? In this case, it's not N, and the only thing this coldcard is used for (well, that still has coins) is this multisig, so I don't think I have much to worry about. I'll move out of this multisig and into a new one once I have decided which wallets I want to be part of it. And holding off on destroying the seed on the CC until after I've done that, at which point I'll regenerate a new seed with plenty of dice rolls, and consider that updated CC valid.