grenv: I disagree with the 24/22.

I agree, you're right. I'm doing too many things at once here and that one was hasty. 13/11 is vital cover for the slot. I'd never do 24/22 and slot!

So the typo was in "Split your back checkers (24/23) and slot your five-point. It " would be the 'and' which should have been 'or'. but worse, they've completely missed out the "bring a two down from the mid-point (13/11" (copied from the 3-2 above on that page) which makes that section sensible.