If I recall correctly he has also drowned a few machines, so I would be cautious about taking a $2500.00 machine where it wasn't designed to go. I'd rather spend the $1200.00 a purposeful machine like the Excal or the CZ21.
I think he did until he figured out what works. And also took 1 way to deep to see when the pressure would crack the screen. Ever since I re did my orings on mine I haven't had a issue. I did drown mine 1 time. But it was a fast fix by MineLab. I now just use my Equinox 800 in the water. When i start scuba diving I will pick up another Excalibur.