Last fall I was diving with John and Karen in Gods Pocket. John was using a very cool Kayak compass mounted to the scoot. I made a note of this.
Claudette picked one up not long ago. We did a dive, I drooled on myself and made a note of this.
I finally got one two weeks ago and have been diving it.
This thing is the bomb.
We got them at West Marine for $34.99. That's retail (who knows how cheap they are online)... that's half the price of an SK7, and almost half the price of the module alone.
Some views of it at below.
So far no issues at depth, no issues interfering with the DSS Surf Strap, no durability issues.
Had to do a little re-weighting (they're barely negative) but no biggie.
I love this thing. I can't recommend it highly enough.
Some views below.