Overclockers Online put up a review on the Spire KestrelKing VI CPU Cooler.
The Spire KestrelKing VI is what it was meant to be, a decent budget cooler. Something as simple as sanding down the copper base to a higher grit should improve it's temperatures, which it is surprising Spire did not do this in the factory. Features like the automatic variable speed fan, and the sleeved fan wires are nice touches.Spire KestrelKing VI CPU Cooler