Variations of Deadlifts - Please Explain

LolBroScience

Within reason... basically this ^

https://www.youtube.com/watch?v=RFy7O3-kKfM

He looks up.

Looks up? Yes.
Forces his head back and wrenches his neck in order to look up? No

Good thing I mentioned "within reason" huh? Dat der reading comprehension of the gods.

petter26

Mark Rippetoe explains this was just an assistance exercise for the deadlift. I don't do them personally.

http://www.allthingsgym.com/mark-rippetoe-explains-the-romanian-deadlift-rdl/