Dear Anthony
Please keep in mind that your regulator is life supporting equipment, that's supposed to keep you alive in an environment where man isn't supposed to be for longer periods of time. Any problems or issues with your regulator, regardless of brand, should be resolved/take care of before you dive it, as your life will depend on it working the way it is supposed to.
So my recommendation to you is that you let your Poseidon certified service center have a look at your regulator and service it, before your next dive.
Best regards
Jörgen Nilsson
Quality Manager - Poseidon Diving Systems AB
Sweden