I’ve attended both and what I learned is that the clincs/lessons are only as good as the students or attendees. (Now of course the coach/instructor matters) I recently attended a 3.5 doubles clinic and I had to tell the instructor I wouldn’t be attending anymore of her classes (I’ve attended 3-4). I told her how much I appreciated her instruction, her experience and guidance. I also revealed to her that I hold back because I don’t want to injure any of the other students. She actually said she made this observation and appreciated my sportsmanship. Keep in mind the people (in class of 10-15) are 3.0 at best maybe one or two actual 3.5. I ended up finding a different clinic to attend and it’s a night and day difference, the people in class are 4.0-4.5’s. I feel I can learn a LOT in this environment and not hold back which in the other clinic was only hindering my progress. Just sharing my experience and wondering if anyone else has had a similar one.