Default send window
Tuesday-Thursday, 8:30-11:00 a.m. local time
Operating rule
Tuesday-Thursday, 8:30-11:00 a.m. local time
Use this window for a first batch of reviewed coffee chat emails. It places the note inside the recipient's workday without pretending that 9:15 a.m. is a magic minute.
Schedule against the recipient's location, not your laptop clock. A 9:15 a.m. New York send is 8:15 a.m. in Chicago and 6:15 a.m. in San Francisco.
Keep the window stable and give both groups equal time to reply. Twenty or thirty sends can help check your process, but a few replies are not enough to establish that one window performs better.