In my youth I've done that many and more. And they weren't even the diet cans. Then I upped it a notch to Code Red when they came out. At least I was super active back then walking as much as 12 miles a day after I got off work.12? I know someone that did that.
Especially the one my sister makes that has cream cheese in the filling! She uses about a third of the amount of sweetener that the recipe calls for. 