Quote: (Originally Posted by DrJM)
I'm using a VR3-VPM since 15 month for deep cave diving on heliox and I am very happy of it. It's +/- equivalent to vplanner VPM-B-E coef +4
It just make me laugh when you're all winging about having to stay in the water longer ... because you're all winging through the week about having to work longer in your office and not being able to be in the water ... and when you're in the water you want to go out more quickly ???
C'mon guys, be safe and stay a bit more uw, it won't hurt and you'll avoid DCIs
Good day
Jerome
Hi Jerome,
it's not a question about being in the water longer. The problem is that the computer underwater behaves differently than in planning mode. You plan the dive with the VR3. Then you dive the plan and you end up with 50% more deco under water.

There is something wrong when the VR3 runs in VPM-B mode.
Are you only diving Heliox? There could be something wrong with the N calculations.