I had to lower my oven temp to 370 degrees and could only bake my cookies for about 9 1/2 minutes before they were done. I am using the only cookie pans I have that fit in my oven that is a dark pan - so I think that's why they cooked so fast!
I'd probably take them out a little before you THINK they are done. Then, immediately transfer the cookies onto a cooling rack (or paper towels).
Unwrap the Hershey's kisses while the cookies are cooking so when you take the cookies out of the oven and transfer them ~ you can press the kiss into the middle of the cookies immediately. If you wait until the cookies cool off too much -the kiss won't "stick" to the cookie and the cookie will break apart trying to press it in.