1. Do your normal pre-release prep/pre-carting. Go all the way to payment.
2. In the announcements channel, copy the URL for your size. In the video, I clicked on it. This opened a new tab to the cart page (it didn't have the shoes because it wasn't live yet).
3. Bookmark the cart page and go back to that bookmark, right click > edit. Rename it and paste your size URL as the new link.
4. At release time, refresh your FIRST TAB (with the dummy item checkout) so that you will get hit with the checkpoint page. Solve and submit.
5. Once you've completed the checkpoint, go to your SECOND TAB and click on your bookmark until you see it added to your cart.
6. Once it's added to your cart, refresh your FIRST TAB so that your cart will update as well. Then, enter payment information and pay.
NOTE: The only reason why I opened a THIRD TAB and solved the checkpoint there was because JJ was very slow during this release. My first tab took nearly a minute to fully refresh, so I quickly opened the third tab for the checkpoint. That way, I didn't have to worry about it later on.
As I said in the video, if you're noticing that the site is loading too slow, you might have to do something similar. Just be ready to be fluid and make game-time decisions on the spot. 💪🏼