Artists perform there usual sets. No 5 min sets at all. I would say 30-40 min set depending on who is performing. RTB normally releases the time frame in which the acts perform especially since they will be performing on two stages. I went one year and got there around 1pm and didn't leave until 11pm that night.
Yep. You pretty much spend the rest of your day at the joint when you go.
I mapped out my schedule so I would be able to see everyone I wanted to. After a set was done, I would rush to another stage to get a good spot. If I was lucky, I the next would be at the same stage and all I had to do was move closer when ppl cleared out. That's what happened with Black Moon and Mobb Deep.
I got a lot of videos from the NYC RTB 2011 on youtube (MegaManZeroV1) if anyone wants to check 'em out.