I found the last paragraphs to be interesting, sounds a lot like what is still said today. Eight years later.
https://www.icmag.com/ic/showpost.php?p=801826&postcount=23
Would I be making a wrong conclusion to say any heat sink tested at 5v cools well enough, or its that an over simplification? Seems like the run of the mill cpu cooler does a dam fine job at five volts.
Thanks for the sharing your work!