Hats off to you for managing to benchmark a notebook stand
I found some use for these things at home. I had positioned the notebook next to my other monitors and used synergy to drive both computers with my usual mouse/keyboard.
Ultimately abandoned that setup though, because the high DPI of the notebook made it difficult to read text at that distance.
I used a sturdy stand, since portability was not an issue. A simple wooden block didn't cost $40, either