Time for a little heavy work, but unlike yesterday's... much slower today. Try and focus on the short, quick and powerful dip/drive that starts this movement. You know you've gone too heavy when you can't lock out without closing your hip (dropping under the bar = no bueno).
Get plenty of stretch-band time in when you're finished. Don't forget your friend the lacrosse ball either. Find that "cable" within you and loosen it up!