Perform dips, rear delt cable flyes, and "over and backs" with a band, one after another in circuit fashion. Rest just long enough to walk to the next station.
related posts
Stretch Mark Mass!
Anabolic Stretching for Anabolic Gains
Lose The Fat, Keep The Strength
It's possible to maintain and even build strength while stripping off body fat. Don't think so? Then try this when you're ready to lean down.
Tip: Use the Bus Driver Exercise for Delts
Looks odd, but it'll hit your shoulders in a way that other delt exercises can't. Check it out.
How to Front Squat With Straps
Front squatting with a clean grip takes a lot of flexibility and using a cross-grip is dangerous. Here's the solution.