Doing dips on rings will heighten stabilizer activity. If you do a phase of these and then return to parallel-bar dips, you should notice a nice boost in strength.
Keep in mind that ring dips are very challenging and should only be performed by advanced trainees. Beginners should start with ring push-ups before they graduate to dips.
Ring dips have caused a slew of chest and shoulder injuries in CrossFit. This exercise is not meant for high speeds or high levels of fatigue. Do it early in your workout, make sure to stay tight, and keep the movement controlled.
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