I love Oceanic gear. I own a Zeta and a Gamma II, two DX4s', a Chute 3, my DataMax ProPlus and I just bought a VT3 which I have yet to get wet. I've compared the DataMax to a few other gauges, including my new VT3. It does come up about 200 p.s.i. short. But that's O.K. It's six years old with...