E.S.
I too love the exergen. It's all I ever used on my first child. Quick and easy. AND when we took her to the emergency room after she broke her arm, they used the exact same one there. They didn't even run it over her forehead. They just stuck it up to her temple. It's not the recommended way to do it, but since they did, I now just put it up to her temple. I tested it a few times and got the exact same read sliding it across or just putting it to her temple. My son is 7 weeks old and it's all I use on him too.
Usually when you call the doctor they ask how you took the temp. Each way of taking a temp produces temps that are concerning at different limits.