CTNews manages to give us a review, with great results, on something which isn't really even understood let alone explained. But hey, results are what its all about right?
"On a freshly botted up system, hrough speedtest.mybc.com, I ran a total of 21 speed tests (3 x tests of 7 file sizes) As I repeated the process three times for each file size, I threw out the highest and lowest values. After installing the registry tweak, I restarted the computer, and repeated the process. A simple test, really."