Got this message from Marc Cashman regarding solution to mouth noise. Just sharing in case someone else may be vexed with this problem. The answer is very simple. Somehow in the passage of time, I forgot to breath. GADQ!
Mitigating mouth noise is simply a process of breathing through your phrases. The moment you stop the air flow is when mouth noise occurs. If you're mindful of breathing through phrases, you'll virtually eliminate mouth sounds. Add a noise gate in post and you'll have cut down on your editing time significantly.