People in MA know that mumbles is an idiot and it’s time for him to retire.
Bostmay ain't no idiot. He is a slippery character who can cut you off at the knees while you are trying to decipher whatever the hell he is saying.
The Germans of course, have a word for this tactic the olde Pilfenwerfer of NAZI wolf-pack days. The sub lets out a big gas bubble that your allied destroyer's ASDIC and SONAR tracks, while the sub sneaks off on another heading, turns and torpedos your ship!