It should (again, this is WEI, so... hopefully it's behaving as it should) be testing your system drive. If Windows is on your SSD, it should be using your SSD for the tests.
Do you have any system files (i.e. page file?) on your 7200rpm drive?
I'd try using HD Tune (http://www.hdtune.com) to see what the numbers really are. WEI is notorious for not reporting what it's really doing unless you go check the logs (and I forget where they are, or if they're even stored by default).
Do you have any system files (i.e. page file?) on your 7200rpm drive?
I'd try using HD Tune (http://www.hdtune.com) to see what the numbers really are. WEI is notorious for not reporting what it's really doing unless you go check the logs (and I forget where they are, or if they're even stored by default).