I don't blame RBs for hold outs. They get screwed by the system given their short careers. Hold out in year 3 of the rookie deal is the only way the stars can really cash in.
Per PFT“When I first started flipping back and forth, I think I was trying to look for a big difference,” Wirfs said. “Honestly, the only thing different is you got your other hand down. It just feels awkward at first but once you settle in it feels fine. . . . It kinda feels like wiping your butt with your other hand. It just feels a little awkward at first, but you get used to it.”