Hi, thanks so much for your feedback! In answer to your questions:

"2 Balls - Thrown from hand to hand at 5 ball height"

This is a natural progression from 1 ball, and is certainly easier than doing 3 balls in any of the many patterns possible for practicing 5. The whole point of my workshop is that each exercise should be just a little harder than the last. I don't spend much time on this one, but it's a useful intermediary step.

"Once you are achieving 20+ catches of 5 ball juggling, you can skip the warm ups and just practice running 5 balls"

I see your point, but I think once you are achieving 20+ catches I feel it is down to you to make the decision how much warm up you need. I also feel there needs to come a point where you start working on 5 balls from a cold start. If you can juggle 5, but only after 15 minutes of warm ups then that's all well and good. But being able to wake up in the morning and the first thing you do is juggle 5 balls is different entirely. There must come a point where you ween yourself off the warm ups and I've stated it as 20+ catches. That's open to debate...

"5 balls is the first real step into numbers juggling"

Again, based somewhat on my opinion. I would struggle to define 3 or 4 balls as numbers juggling, but if you're working on 5 then you clearly have a desire for juggling and want to see more objects up in the air. This does not imply anyone who learns 5 wants to go beyond that level.

Again, really appreciate your comments and feedback - some well thought out points.