For me, when they get tight I roll them out with a lacrosse ball against a wall. Pin it between your trap and the wall and just roll around for a while. Push ha

For me, when they get tight I roll them out with a lacrosse ball against a wall. Pin it between your trap and the wall and just roll around for a while. Push hard, and hold spots that feel tight. Try to breathe and relax the muscle into the ball.