Seconded. Rip's method is how I tried to learn squatting when I started lifting. Didn't like it at all, so switched to high bar (Rip's PoV on that be damned
) and continued that way happily for some months.
Then, one day, I decided to try low bar again, in case I was missing out on some gainz (lol, but it turned out that yes, I probably was), and hurt myself trying the same old technique as before. :/
Then I discovered Paul Carter's advice, and have done them that way ever since, without injury or even pain.
Mind you, I'm still a bit of a n00b. But hey, thought this might still be relevant.