I never have but I'm thinking about getting on the road about 4am to see if its any good. I have a friend who drives for a limo service and I know he always has airport runs at that time. Tomorrow is rosh hashanah, might be a bad morning.
Holiday weekends and the workday after are usually slow. Tomorrow is a Jewish holiday. Believe it or not, many Jews corporate types use Uber. They won't be out tomorrow. Most schools are out, many offices will be closed - Jew owned businesses usually let their employees off for the day.
Now, Wednesday is another Jewish holiday.
So, this whole week will be slow. Personally, I've found that 3:30PM - 10PM work good. Mornings only 4AM-5AM (really 1-2 rides at most), and 7am-8am (again 1-2 rides). After 8:30am, everything in the Westside has started to slow down. After 10AM, forget about it!
I had a good morning as well! Logged in to a complete red screen. Didn't believe it at first, but then hit a 1.5 surge to LAX from South Pasadena. Stayed busy up until around 11, where it came to a grinding halt. Took a long lunch, and then finished off with a couple quickies.
Now it's all about Monday Night Football!!! Go 9'er!!!