Lessons from the Oregon game preparation?

I remember reading a lot last year about how the Tigers prepared for Oregon's hurry-up offense, specifically with two offenses alternately running plays while giving the D very little time to catch their breath. Various players commented that they were in much better shape than usual because of that routine, and I thought it sounded like something that could become a standard part of our pre-season work. I later read, however, that some of the D linemen had lost a fair amount of weight as a result and that they had purposely put it back on over the weeks after the Oregon game in preparation for SEC play.

So....the question for all you football theoriticians is: Has anyone heard about any plans to incorporate the "Oregon drills" into this year's pre-season work? And do you think such work should be a standard part of our pre-season prep? What's more important for the linemen: maximum aerobic fitness or weight?