I mean honestly, they should allow make a decision to which bands will "always" be in stock for at least the next year. Then just take back orders and give the customer an expected lead time. This way you can always order them and just wait for them to come back in stock.
It's so simple. I refuse to purchase these things now. The website is crap, I just went to reconfirm my solid color choices and when you click to review your order all the people in your part do no have any selections. So you have to go through each person and re-add them just so they are confirmed. Then the page sometimes auto-refreshes.
I have a split stay so I could have two sets and it's tough to differentiate between the two "orders".