I think I definitely am a quad dominate person.  Like you said, my quads are on fire in the dead lift especially if I focus on keeping my butt down.  I guess I should just keep focusing on glute exercises like what Kefu is doing.

I was thinking about going to a chiro just to have them analyze some structural aspects of my body as a starting point.  Seems like that is where to start if anything.  

I think the main problem is that I have to spend too much time on mobility.  I get loose and then become stiff afterwards.