Warm up for the split jerks with any of the drills outlined in this article: http://www.catalystathletics.com/article/1977/Improving-Your-Footwork-in-the-Split-Jerk/
From CrossFit.com – December 6, 2016
21-18-15-12-9-6-3 reps for time of:
Shoulder presses, 95/65 (no racks)
As written. Only athletes with solid technique and previous high-rep GHD experience should choose this option.
GHDSU to parallel or V-ups
Shoulder press@65/45 or 55/35