No risk, no reward. If we are open, it will all be given away Sunday. Read the fine print, 30% chance Sunday, that means we have a 70% chance that will not rain, and that doesnt even give any indication of how much, and for how long. Saturday only looks better because of the little sunshine icon on the weather forecast. I dont see much of an advantage of Saturday vs Sunday, 10% vs 30%, there's a chance either way. Im riding both days if the tracks are good at 11:00.
If they changed the forecast to Cloudy, with a 30% chance of scattered thunderstorms, Sunday actually sounds better to me, because that tells me overcast, which is without a doubt the best conditions to ride in.