My personal opinion. It is what it is. Dont split up the day for people to try and meet deadlines. I got there at 9:30, left at 3:00 with plenty of seat time. The timed sessions I believe were 15 mins, that was plenty of time, as I seen a few people pull off early. The track was phenominal and I love the new start layout... But, I will sure miss ripping that long sweeper and flying up that hill.
If you want more time, get out of bed and be there for opening. Although, starting at 9 and ending a 6 would make for a longer day to ride...with a turnout like that, im sure it would be worth the 9 hour day.