From what I've read, if you raise slowly (like 1cmh2o per day maximum) you'll notice an increase in Central events and a higher AHI or obvious aerophagia if you get too high. I haven't read a single case of exploding lung though even at 20cmh2o. This is not medical advice though!
They make it sound kind of risky, but ... does anyone have a way to quantify the risks here?
I mean, is adjusting your own CPAP machine as dangerous as say, driving a car across country, or drowning on a trip to the beach, etc?