As I am 6'6'' I would also prefer to sit in row 4. So, I reserved 4b and 4c for me and plus1. 4def are occupied.
Is there a risk of loosing them to disabled passengers, so we should rather take an exit row seat or row 5 as long as they are available? It's a flight up north from MCO in March, so is are probably a bunch of old folks from the villages on board...