Am I the only one here who is getting a little worried that lots of keen/brave aviators, equipped with a variety of experience and skill, are being tempted to go off and investigate the boundaries of the VRS flight envelope?
Please, before you do, remind yourself about how the pitot-static system works and what sort of flight regime it is designed to work in. Then ask yourself whether a 600'/minute indicated rate of descent at an indicated airspeed of 10kt is likely to anywhere near accurate. I suspect that is why you often see qualified test pilots flying aircraft with all sorts of probes sticking out of them?
Cheers TeeS