I mentioned this months ago and asked TR to possibly explore it. I did so on my own, but didn't find anything of use in Guildwars 2. I personally always set powertune to +20% as it seems to relieve the occasional jerkiness experience during prolonged gaming sessions.
This was the original thread:
viewtopic.php?f=3&t=83535I gave up as there really wasn't anyone to prove anything to and no one seemed to care.
As far as I know, TR hasn't looked into this or really any notable hardware review websites.