Jd Smith1
Hero
I won't run a session for less than 4 hours. And weekly.in high school, we got by with 30 min of a 40 min lunch period... 4 or 5 days a week.
For many years, 5-6 hours was my norm. Now, I'm happy to see 3.5; I don't have access for longer.
But if you play f2f, you have to deal with constraints.