Originally Posted by MJLogan
If you do as you propose and book 2 separate tickets, I predict that you won't get the 2 seats on your outbound and that one of your returns will be voided.
I agree, this could easily happen with two separate reservations. I can see people succeeding to check in twice, but unless you can convince the gate agent to scan both your boarding passes, one of your tickets will look like a "no show" to the system.
- Martin