Update: Based on the poll responses, I've updated some of the times.
I've added a few sprint sessions to the calendar.
Monday 4 pm - 6 pm EST
Wednesdays 6 am - 8 am EST
Saturday - 10 am - 12 pm EST
Tuesdays/Thursdays - 10 - 12 pm EST
I'm a full-time author and can adjust my schedule for sprints to accommodate the days/times people are most interested in. I'm (reluctantly) a morning bird and usually shut down around 6- 7 p.m. EST.
What days/times are you most interested in?