3 mixes was the preset amount. I was thinking of bumping that to 5 or 6. There a benefit to that?
Yes, you can send utxo in Postmix wherever you need.
There's also option called "Mix to Settings" where you can mix directly to your cold storage
Check this out
https://sparrowwallet.com/docs/mixing-whirlpool.html#mixing-to-cold-storage
3 mixes was the preset amount. I was thinking of bumping that to 5 or 6. There a benefit to that?
I changed mine to 5.