Alllllrighty, got the silver Duo from Horseware on the horse.
It’s manufactured in Cambodia and fits as I expected for a 75".
It arrived two days after order, was the right size, and contained all the pieces it should (huzzah!)
It’s not quite a light in color as I expected from the pics on the website, but is still certainly lighter than their dark colors.
The tail flap is longer than the Irish Duo Force, but not as long as the Cambodian Duo Force.
@CanteringCarrot when I emailed Horseware to enquire about country of manufacture for these, she said that the Irish blankets were made by hand, and there was some variation expected because of that. I might have just gotten a blanket that varied small. Although every other single piece of 75" Rambo I have is made in Ireland and fits very consistently. So
If you look at the pic I have in the post above of this same chestnut horse in the Irish Duo, you can see how much more of his booty is showing. It’s a pretty significant difference!