Nick is very good. I also work at Diversey range and the Bensenville dome. If you have any questions and want to talk PM me and I will send you my number
To really see how much hip slide Hogan had (not as much as you think)
http://jeffygolf.com/showthread.php?58-Hogan-s-lateral-hip-slide-how-much-is-quot-a-lot-quot
This may help you to get a better understanding of what you call dropping the shoulders,
http://www.aroundhawaii.com/lifestyle/health_and_fitness/2011-11-pga-tour-clubhead-lag-part-2.html
Brian knows his stuff, the whole video is out of context so who knows what him and student discussed during lesson. This could be the recap of things to work on and upcoming lessons