If you read at all closely, you would have seen that I never claimed we had done it yet, only that it was a possibility. We checked the POH for the Citation X Wardog, and it certainly is possible, though there needs to be a bit of a mod made to the door to be able to open and close it again at that speed and altitude. A citation has manually depressurized before with no ill effects to the aircraft, that time due to a faulty sensor. But its nothing that cant absolutely be done. However, I think I may have found an even simpler and less risky way. I can just take a window of a flat earther's choosing, and attach a couple of these solid state flex sensors I have to the inside and the outside of the window. These can measure variations down to about .5mm, though I am sure there are more sensitive (and more expensive) options out there. The microcontroller code and supporting electronics would be at the skill level of a hobbiest, so I will post a schematic once I test it out.