Well the first thing to understand is orange peel is NOT the opposite of a run. And the old line about a smooth paint job is a "controled run" is BS. As well as "flow out" is WAY over used and misunderstood.
As said here a number of different ways, ADJUST YOUR GUN!
Let me ask you this about over reducing. If a paint rep comes in and shoots a demo in your shop trying to SELL his product, do you think he over reduces going off the tech sheet? Well the answer is NO. Do you think he does anything different than what is on that tech sheet? The answer is NO.
And do you think he is going to go do demos that look like hell covered in orange peel? The answer is NO.
He sets the PROPER gun up PROPERLY and shoots the stuff out looking good.
It isn't about "flow" and spraying it so it is about to run, that is BS
If sprayed correctly with a proper gun set up you can't get a run to save your life! You will NOT get a run because you are breaking the product up into tiny droplets that are hitting the panel creating a nice flat film and that is how it will stay.
Here is setting up your gun in a nutshell.
http://www.autobody101.com/articles/art ... tomization