In California DMs usually are with the group that charter the boat, so they are not paid...
Since a couple well known incidents here in California of divers being left behind drifting when the dive boat departed the site, we're seeing more and more boats with DMs as part of the crew, and not provided by the chartering club or organization. Boat captains are now reluctant to put their liability into the hands of a DM they don't know and control.
I used to DM the six-pack owned by the shop I was affiliated with. The pay was minimal, but I did it for the experience and the shop perks.
If the divers tipped me I usually gave the money to the captain.
My real weekday job paid me enough.
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