Lower your self to an RDL position. Row the handles to your upper stomach and arch your back as hard as you can while driving your elbows back. On the eccentric, let your shoulder blades spread out and round your upper back over to stretch everything.
Sets and reps can be 3-8 x 6- 20. You could even do these for time. These are usually done I upper body days so we are rowing I. A similar plane as our bench path.