Both very good reads. I especially liked the bit about endurance in the second article...it's -EV short term, but will help you maximize your profits in the long run.

I have a question though...is it generally +EV to have a concrete, consistent weekly playing schedule? I generally play when I have the time (and play until I've had my fill, usually a couple of hours) because of other obligations that I have, and that time usually differs from day to day. Am I losing out on anything by playing like this?