For me it is half the fun starting this early . I also have not been changing my picks though as I don't want to waste your time.
I have a idea that might be liked or hated. Maybe make it where if someone wins with a pick that was changed give half the prize, and move other half to the next week. Just seems one who picks early has better choices normally, and if they change later on they got a prime spot plus being able to watch difficulty for a bit. So really is a advantage.