We always provided the coffee and pastries (that's one reason why the break-even was 10 heads).
I always ran 55 minutes in session + 5 min for breaks every hour. More breaks but shorter in duration. I didn't mess around with extended breaks or wasting time on unrelated war stories, either. If someone is basically being forced to pay for 7 or 8 hours of credit then they deserve what they're paying for; plus whatever value-added content I could squeeze in there.
Plus, my style of instructing a CE class among my peers is to respect the room and encourage as much interaction as possible. Less lecture, more discussion based on the common experience. I'm trying to connect the dots between the course content and their day-to-day. I want to interact based on their interests and viewpoints, within the constraints of the course content itself, of course. That's one reason I tried to draw in the guys on the back row - to elicit the opposing viewpoints for discussion and consideration. If I couldn't get them to bite then I had to do the devil's advocate thing and bring it up myself because I was dependent on airing out both sides of these controversies.
I was putting way too much energy into the instruction to sustain it at that level on a full time basis. Best for me as a part time gig. McKissock's program at the time was for instructors to teach 3 days in a row, in various locations. It's an effective program that works for them but I wouldn't have fit into it.