The Pressure is on!
This provides the answer to the question, will the Thin Air Press work with less atmospheric pressure?
To put this in perspective, on a longboard build using the 12 x 48" veneer, the numbers look like this:
At Sea Level: 27 HG = 13.26 pounds of pressure per square inch (psi)
12 x 48" x 13.26 = 7,638 pounds of pressure
At 10,000 Feet: 21 HG = 10.34 pounds of pressure per square inch (psi)
12 X 48" x 10.34 = 5,956 pounds of pressure
For more detailed information on vacuum pressure, check out this tutorial.