Start: With a neutral grip, you're essentially doing two simultaneous elbow-in-one-arm rows. Start with the dumbbells hanging slightly in front of your shoulders and arc them back toward your hips as you lift them.
Finish: Pull the weights up until they're even with your lower rib cage and your elbows are higher than your torso. Keep your torso in the same position throughout, and maintain the slight bend in your knees.