PCD Date Provided - Question on booking travel

[F150 Duke]

All,

Well we were given a PCD date in less time that previously quoted (7-10 days)! The PCD date is June 1st for both X5 purchases and we are really excited. The letter says they will be reaching out to us to confirm the date in a later email and that we should not book travel until 3 weeks before the June 1st date.

What has been everyone’s experience here? Do they really ever push that date out at all? I’d really like to book the tickets ASAP before the prices to GSP go up anymore. As it sits today in cheapest form, we will be flying US Airways with one-stop out of MSP to GSP for around $173 per person after taxes and fees. However, I’m seeing the prices rise steeply on the flights I had preferred on Delta from $173 to $361.

Thanks!