Stack and tilt. You dont have to follow the whole damn system but get the book and read what they say about forward lean etc.. It helps a lot. Shoot there are a ton of things in that book that would help 90% of the golfers out there without drastically changing their swing or adopting the S&T swing.
It's funny you mention S&T because recently I've been watching some of the youtube videos and have become intrigued. I'm going to check out the book tomorrow. I'm a little concerned that I'll have a tough time translating what I read to my actual swing but I suppose my swing can't get much worse at this point.