Here's the email I received today from BLT:
Hi Jamie,
Your current ETA is 5/31. Multiple ETA's for a single warehouse aren't
represented online.
Please remember that ETA's are provided by the manufacturers. They aren't
guaranteed arrival dates and are subject to change at any time. They are
the only delivery information we have for items that are not currently in
stock. Once an item is in stock, you will receive an email, and your
order's status will be updated online.
You are doing the best thing possible by keeping your order in place, which
secures your place in line. And, please remember, we don't charge your
credit card, until your order ships.
Thank you for your business, and we apologize for any inconvenience on
behalf of the manufacturer.