I am purely speaking on logic not preference. Plus I will not be attending. But, within reason the earlier the better. For the simple reason of you never know the turnout. If it's light that's one thing (add extra rounds?)but if you have a huge attendance then you could possibly screw yourself. I have experienced shortened races and rounds because of this very issue. I'd rather race more than race less. You know your racing either way so you have to set aside the WHOLE day (this being the main reason for myself).Your never going to make everyone happy! Just an outsider looking in....just sayin