i think 2 is good.
i mean starting at 4 were finishing up between 8-9
so take off 2 hours from that say now finishing between 6-7
not bad plus the people who happen to work on saturdays can still make it if they want to. i think that is one of the major pluses.
i think the problem with the lights is more about the draw of the power
everyone is set up in the pits using up all the electricity
last friday night when we were prepping the track (nobody using power in the pits) all four lights kicked on in about 30 seconds.