Here are some accessory exercises from Don Giafardino, Owner of Adex Adjustable Clubs and Maces.
Don goes through the Shoulder Pass. Keep the club on the same side of the body that you are emphasizing and focusing on a controlled pace. Start with 10 reps of 10 sets.
Next, try a Club Halo. Focus on taking the club through a full range of motion behind the head. Start with 10 reps of 10 sets.
Arm Cast/Front Strike. Start with the club in the hand and the arm at a 90 degree angle. In a controlled manner, reach the club up and behind the head, and then back to the starting position. Start with 10 reps of 10 sets.