I became a two UY owner by accident. I had a specific price in mind for a BWV resale contract but kept striking out w/ my original UY (June). One day, I decided to place a bid on a contract with a Dec UY - and the sellers accepted. It was fully loaded, so I went for it.
Looking back, I probably should have considered this setup from the beginning. Given our travel habits - we go several times a year - having both June and December actually makes a lot of sense. It helps make sure we’re never using points right after a banking deadline. I know that’s not a big deal for everyone, but for me, it’s something I prefer to avoid.