The bat was indeed sourced from Sports-Bay-Clearance on ebay in the UK which is Gray-Nicolls themselves. I had tracked it for many months and the price dipped again just before Christmas because of an ebay offer. I was advised by the seller that these were originally stock for their players to select from but are above average weight and pressed a bit harder than usual for these players hence spare and offered for sale. I had enquired because the Ultimate Original was not commercially available as a Pro Performance. I took the bat on its own merits rather than because of this information, however, I am very pleased with it and is better than I expected from the photos they had posted of it on ebay. A G-N bat cover and bat face cover were included, too.
Edge size is 38mm and very little concaving. Yes, it has a square toe.