I paid $20 bucks from amazon for a tube after reading some reviews along with a new Scythe Mugen 5 Rev. B Finally got both in my hands for testing out and figure why not share my results. love'em or hate'em. Additionally I am using a Cougar Vortex 120mm PWM Fan instead of the included Kaze fan (about 3c better and stock fan after testing) My setup is a 4790k @ 4.6GHz all core (1.233v) and stress tester is prime 95 28.7. Ambient is 21.9c Peak Temps: TG Kryonaut: 94c IC Diamond 7: 89c TG says there is no cure time but I gave a day anyways and even re-applied a second application with same results. All test were done by the "pea" method and the kryonaut had a good spread each time. IC Diamond 7 was given the same amount of cure time and is a old tube I got from Microcenter a couple of years ago. Application was the same "pea" method as mentioned above.