Don’t feel silly at all! I still sometimes make sake cups like that (and they aren’t too much bigger). Throwing off the mound is great because I don’t have to keep centering, and it gives the height to help see things better (as well as get under them). It does come with challenges. ie: One needs to be very aware of where the bottom of the piece is (I have cut them off the bottoms of pieces by accident when I’m not paying attention.). I am also a klutz, so I tend to drop the wet pieces as I move them off to a board, etc.
[Anything that is bigger than a sake cup really should be thrown by itself, as the floor needs to be compressed so it doesn’t crack later.]