Got the potential to cause more problems than good imo. As an example, I live down south, mate lives up north, 6 of us going, for city we bought 4 together in Same tier phase 1, the other 2 were in phase 2 and was hoping to get same tier, we didn’t as were none, so the 4 together (2 are mine) he’ll use as it means his kids will be with him) I’ll use his two from phase 2 for me and my lad in different tier, so if he got pulled for check in, my tickets that I’m using (are his) would be deactivated until he checks in, and obviously don’t travel together so could be a right pain. Luckily none of us have had an email