I bought anhydrous caffeine and took some before the test and at lunch. That did wonders. Although I didn't take any during the test because I didn't want to explain to a proctor what type of white powder I was ingesting.
We've been using Amana which are suddenly not code compliant. This increase affects SPVAC, SPVHP (3.0 COP heating and 10 EER cooling). The only manufacturer that I am aware of that meets the 10 EER is Magic-Pak. Any others out there that you know of...