Don't feel badly about forgetting something. Just a week ago I had to ask what size block do I start with if I want a 4 1/2" HST unit. And that is basic 101 quilting, but I'd gone blank, like you. The lovely members of this board stepped forward and explained it 3 different way, and Ka-ching! It all came flooding back. I just hadn't made one in a while. And no one is going to think it odd that you can't remember the name of a quilt block. That's what I love about this board. There is no such thing as a stupid question!