<< The majority of low end socket A heatsinks "temps' are read lower than what they really are(ala C-orb, the cheaper coolermasters). >>
Yeah, I thought about that too, but I'm pretty sure the results are accurate. The thermal sensor, in both instances, was properly contacting the back of the CPU, not the heatsink. Any reading would have resulted from what it could gauge off the back of the chip, not any other heat source. Whatever was happening, a lower temp was the end result.
I'm a firm believer that you can get decent cooling with just about any heatsink so long as it's made from decent materials, mounted with good clips, a proper layer of thermal grease applied, and is carefully mounted. I really took my time and spent nearly an hour getting it installed "just perfect". Taking the time to do it correctly is the key in opinion. Then again, not many folks are as anal as I am when it comes to these things.