I haven’t either but wouldn’t it completely depend on the set? Some are wooden with a lot of ankle room. Others are padded where your ankles are more secured. Some have toe ties. The feeling I get when I imagine it, just as I feel with being restrained for tickling in general, I’ve often described that it feels metaphorically like I’ve shrunk to about an inch tall. Eep. Incidentally, I find myself drawn to tall women.