The swap will begin as soon as the coin launches and remain open for 10 days.
It's not very well documented, but from what I've gathered the only difference between HiPos and POS is that in HiPos your weight does not stop building after it hits your coin count. So if you have 10 coins and keep them offline for months, when you come back you will have 10 weight in POS coins, and more weight in HiPos that allows you to help get your fair share that you missed. HiPos also allows for some strategic locking and unlocking that was more relevant in Greed and GE than Swing.
A. Mine it when we launch
B. Own Greed Evolved and convert it to Swing seed coins.
I've been trying to reach out to supernova as they insta added both Greed and GE but have not heard back yet. I get the feeling he will show up on launch and plan to pre-add him as a DNS seed, but if not there is a tendency for a half dozen pools or so to add new coins so we should get a few at least.