I have the Bates VSD with the Cair system. Its relatively new in their range and, for my saddler at least, it can been difficult to get. Its comfortable, looks great and has the advantage of the interchangeable gullet at Cair.
The Collegiate GP is cut the same shape as the Bates VSD, has the same adjustable gullet system and is lush. Lovely soft leather and uber comfy... Tis also only around the £600 mark new...
I don't know if it was a VSD but I rode in an Ideal today and it was the comfiest saddle I have ever sat in! I really really want one (or two!) now, they are fab.