The baking with the foil is simply for easier clean up I think -- I don't bake on it myself. i think if you have silpats that would work just as well.
When I made my last batch, I used a muffin scooper which I had just procured and man, my cookies were the most beautiful they'd ever been. There's a reason people use things like muffin scoopers for cookie scooping! I felt professional!
But these cookies are really awesome because they're snickerdoodly but also oatmealy and totally unique. I think it's hard to find a unique cookie.
Glad you enjoyed them! Spread the word!!!
Shannon