Well I don't think what your saying about picking a time and sticking with it necessarily applies here. Since our first 10:00am league was the first time anyone showed up to play. And this is a new league, so we're kinda playing with things a bit at first to see what works for the majority. Besides that, the reason for changing the time was two-fold. First, everyone I talked to expressed that they would rather play at 10am. Second, with the summer heat coming up, playing a long round during the hottest part of the day (after 12) would be a bit hot.
F.Y.I: We finished in 2 hours last weekend. We started at 10:30 and finished at 12:30.