I started CG when i got out of the hospital and all I had around were two big jaw dips so i used them at the crown, and a few smaller ones I used at the sides. I had a small odd bunch of other clips and used them if needed as needed, but the jaw clips work great.

I got the kind iN the book but they weren't as easy to work with so I went back to jaw clips.

I dont criss cross, I just grab a bunch of hair and pull it up and clip it.
On the sides I just scrunch and clip with the smaller ones.
I think they work great.
They are cheap and easy to find. Goody makes then, Scunci makes them.
You can even get them at the supermarket so it's easy and cheap to try and the results are good.

Root lift and curls, even just air dried.