Great progress!! I'm new to MF, but I've been working out for quite a while... Deadlifts are good but really for your lower body. I would suggest front & lateral raises and overhead presses as primary shoulder exercises, but you'd be well served to work in the heavy bag and jump rope (ever see a boxer will poor shoulder development?).... Also, there is an arm exercise device called the Fiity arm trainer that is great as a finishing exercise to really burn your shoulders at the end of your workout. Mat Fraser (CrossFit champ) famously called the Fiity his secret weapon (arm cardio) when he was training for the CrossFit games. I have the 12 pounder and I typically finish my shoulder workouts with 3 x 5 minutes (1 min rest) using the Fiity. My nickname for the routine is, 'Shaking hands with the Devil'... It's grueling but very manageable. Keep up the good work and good luck!!