So last week I decided to make lots of cupcakes for a work event, and I purchased some silicone baking cups at Crate and Barrel. (I only have 2 muffin pans, but 2 ovens so I figured the silicone cups would let me bake more at a time, with the added bonus of not having to mess with the paper things.) Well, it was a disaster. The cupcakes stuck. Had a horrible time getting them out of the cups, even after I tried spraying some of them with Pam first. Has anyone else had a similar experience? I'm wondering if I should just try to return them, or is there any chance that these things need to be "seasoned" somehow and will work better after more uses?