[teknopaul]

3 or 4 is just fine. I worked at a place that only did pair programing, but quite often we would break up to write docs fill out jira issues and do all the other stuff that's needed. Recently we did 3 way programming once a week for 1 to 3 hours and it still had a lot of the benefits. Not sure being absolutist is a good approach to anything in our field.