Writing this as @anon for opsec reasons, but here's the situation. My current system of cold storage is just a simple seed phrase backup that has been a software wallet several times and was stored semi-insecurely, so I'm moving everything over to a hardware wallet with a dice roll generated seed phrase. It's a few million sats, almost all of which are KYCed. I don't have a big concern about cleaning them right now or anything (I'm actually considering having both a KYC and non-KYC stack long term), I just want to make sure that it's an option in the future.
Thus comes the question. Should I move the sats all over into one big several million sat UTXO, or split it up into several smaller ones. Which choice would be better long term? If I choose to ever lightning clean or CoinJoin my cold storage, what UTXO setup would be most helpful for that? Does it matter? I've considered doing several small fake two-person coinjoins on Sparrow to move it all over, but I suspect the eventual consolidation under a single wallet would eventually kill any privacy benefits. Excited to see what you guys think. Cheers.