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I think that this Mexico Matt guy is a sock puppet...or a troll. he cannot be serious.
Sock puppet? Look at his profile and his listing on IANTD pasted below. Besides, looking at both your avatar pictures I would cut him some slack.
How can he be that educated and not understand how a SCUBA regulator works? Maybe English isn't his first language, and I should cut him some slack. Besides, what's wrong with my pictures? Just because I dive vintage gear doesn't make me weird :mooner:
There are lots of excellent divers and excellent instructors that don't understand how regulators work. Just like there lots of design engineers and regulator technicians that don't know how to teach diving.
How do you Slonda828 conclude he does not how a regulator functions? His blog would seem to testify otherwise. I would venture to say 99% of technical instructors are extremely well versed with all facets of dive gear especially regulators. Slow day?