I have this odd problem on my i5 MBP. When I have no external drives attached AJA System test reports my SSD speed at about 227mb/s read and write. When I plug in a USB external drive the SSD reports the same speed. When I plug in a FW800 drive the speeds jumo to 234 - 245mb/s. When I unplug the FW800 drive they go back down. Anyone else see this problem?