> Mill's Mess. Once you've mastered this, you've mastered 3 balls!

Ugh, no way. There's way more to three ball juggling than just Mills Mess (no apostrophe, his name was Steve Mills and it's not possessive but just a title).

Mills Mess is the start of learning that there's more to three ball juggling than just a couple of over the top throws, not the end of it.