Nothing wrong with the question, jasp, other than Mobile being a city in Alabama.
I have heard the same as you that synthetics should be left to drain back longer. I usually check my oil in the morning before I start the car and so it is done at the same inclination, etc. Of course, when traveling I can't do this, so I just wait as long as possible after shutting off the motor. My engine doesn't use any oil (knock on wood) so I've never had a problem.
What you might do is test it. See if there is an appreciable difference between first-thing-in-the-morning and 5-minutes-hot. If there is, just make the adjustment, assuming the morning check is more accurate.