I am going to be starting OVT soon and want to make make sure that I know what I am doing as far as preparing my body. I have started a starting strength program to get my muscles ready, what I am having the most concern about is Fuel, Breathing, and Warmups.
(1) Does it matter what time of the day I work out with reguards to which meal I have just ate?
(2) What is the correct breathing pattern to use when doing exercises?
(3) When I am doing the OVT program Im not supposed to take a break inbetween each exercise in a superset, so should I only be warming up to the 1st exercise of each superset? But then I have 2 minutes after a super set to break, does that include a warmup for the next super set? Or can I just do a all around warmup before starting my program for the day?

Example:

Bench press 5x5 (No rest) Superset 1
Flat dumbbell flies (2 minute break) 5x5

Incline bench press 5x5 (No rest) Superset 2
Incline dumbbell flies (2 minute break) 5x5

Lat pulldown 5x5 (No rest) Superset 3
1 arm rowing (2 minute break) 5x5

Bent-over barbell rowing 5x5 (No rest) Superset 4
Seated cable rowing (2 minute break) 5x5