This format usually produces the quickest improvement in the student's game, and because of the powerful influence of the pro's advice, it's particularly important that that advice be sound. The most rapid improvement. Full activity for the entire lesson. Unlimited full-court hitting time with the pro. For advanced players, a great opportunity to compete with the pro.
Some kids are uncomfortable without a peer present.
No one handy for practice at competing with a peer. Kids whose primary objective is improving as fast as possible. Players who need to learn or fix a specific stroke. Kids who are heavily involved in team or tournament competition.