It might look like me....
In all seriousness, my knowledge base as a coach is a product of many different disciplines, and I devour knowledge from any source I deem reputable. This warm-up I recorded for prepping and improving your hamstring mobility borrows from Donnie Thompson, (He is the first human to ever total 3000lbs! 8-all time World Records in Professional Powerlifting) and Max Shank (he has written 3 books and taught over a hundred courses in countries around the world). How is that for reputable?
The warm-up protocol is 3 sets of 15-20ft QL walks, 5 second toe hold, 5 reps compression pike pulse. If you were doing the Ultimate Athleticism program you might do this routine in between work sets in the interest of efficiently spending your precious gym time.
Come to think of it, I think I also heard Coach Sommer talking to Tim Ferriss about these as well. If I have come across so many great minds suggesting these movements don't you think its about time to try them?!