What type of hook do you use

[Jerry Tee]

I think I can see another thread on 'Nock Pinch' coming.

Why? Nock pinch isn't a technique, it's a consequence of the hook and draw.

[Murray]

Nock pinch is only an issue if your groups are adversely affected by it.

[moo-mop]

Just a quick note on the hook thing, of course terms like deep and shallow are open to intrepretation.
My partner got an tendon injury in her drawing wrist from what was almost certainly, in hindsight, a too deep a hook causing too much pressure on the ring finger. Later we found a very old post on a newsgroup (by vittorio) saying in his experince that this was a known consequence of a too deep hook.
So I think the pictures in TA are the way to go too.