747 Upper Class and T60 Seat Allocation

Hi
I just have a couple of questions, heading to Miami in September and on the 747 for the flights! It has been some time since found myself on a Virgin 747 but really looking forward to it as always prefered to UC layout.
From memory I always remember thinking the lower desk front 2 seats while great if you want to chat were a bit shorter when made into beds or less shoulder room, but not sure if this is accurate or just me getting mixed up with another airline.
Second question is the T60 seat allocation, havent been bothered with seat allocation when not flying the 747 but wondered does it open T60 from the time of the flight or day of the flight?
Many thanks
I just have a couple of questions, heading to Miami in September and on the 747 for the flights! It has been some time since found myself on a Virgin 747 but really looking forward to it as always prefered to UC layout.
From memory I always remember thinking the lower desk front 2 seats while great if you want to chat were a bit shorter when made into beds or less shoulder room, but not sure if this is accurate or just me getting mixed up with another airline.
Second question is the T60 seat allocation, havent been bothered with seat allocation when not flying the 747 but wondered does it open T60 from the time of the flight or day of the flight?
Many thanks