So i just went through the cumbersome task of installing the Newer Tech SATA extender and connected to my OWC Mercury Elite-AL Pro Dual Bay enclosure. Inside the enclosure are a 1TB and a 1.5TB drive. When I want to set up the striped RAID arrangement via disc utility it shows the drives appropriatley as 1TB and 1.5TB respectively. However, when I set up the striped RAID arrangement it estimates the disc size as 2TB as opposed to 2.5TB as it should. Once the set up is complete is shows the RAID arrangement as 2TB as opposed to 2.5TB... Any ideas, am I doing something wrong here?