Day 1 Start Day Pros/Cons

[Talking Poker]

In addition to the above, Sundays are always going to be softer and most of the online pros will opt out of those days to play an online schedule instead.

[Wes]

I was going to play on 1B so I don't have to wait in line for the bathroom for 15 minutes. Plus, no pros play day 1b.

[Windbreaker]

There's no Sundays this year. All day 1s are from Monday to Thursday.

In all honesty, I think the difference among the days is relatively small...and you should just pick the date that works best for you.