Unless you are kissing the person you are fighting, >your hook is going to have to drop away from you chin as you begin to >launch it
Actually, positioning yourself close like that before unloading makes more sense. At least it does for someone with arms as short as mine, dropping your hand without the positioning opens you up to someone which is what i think id be running into with my speed and ability. =)
Lots of good advice given here in this post and the one linked. As Paul mentioned there are several variations on the hook in both form and power generation.
Personally I use a shoulder whirl and do not use my hips to generate the bulk of my force with the hook but they do come into play, just not as much as in modern boxing. Rather than having my hips, i use my opposite shoulder to push other around, a bit hard to explain in aparagraph but I would be happy to go further into it if anyone was interested.
There is also the Russian cast method which relies greatly on a relaxed throwing of the should forward. While this is slightly telegraphic, I would not want to be the one to tell Fedor that his punching technique is sloppy looking