Hey CrossFit 619 in San Diego! If you are new to CrossFit I strongly recommend perfecting The Sumo Deadlift before the Traditional and Conventional Deadlift as a beginner progression. Why you ask, because most of the beginners/general population need to focus on strengthening and getting better at mid line stabilization and mid thoracic extension when starting crossfit. This will help alleviate the risk of exercise injury tremendously. Your glutes being strong will really help adding balance to the hip and alleviate hamstring/low back tightness.
Here are some great videos I found to help you with your technique on The Sumo Deadlift and Medicine Ball Cleans.
Medicine Ball Clean
More Sumo Deadlift …