As I have likely mentioned many places before I am not a huge fan of spins. They can be dangerous if done incorrectly (with bad form) and cause major damage to tendons and ligaments. These take longer to heal than muscles due to their structure. It is much better to prevent the damage than to try to heal it after damage.
Make sure you keep your shoulders back. The easiest way to get there is to stick your chest out.
As usual unless your shoulder is injured, do these on both sides even though you will like one side better than the other.
Aviva has been instructing private clients and group classes for over 20 years. Her passion is pole dancing. Her focus is safe, effective training for the purpose of achieving your goal.