Rich,
Well at least it sounds like you've made big improvements.
As for overspray, first off let's understand what it is. From what you describe you have areas that are not smooth - pebbly or orange peel in appearance. This is the result of the paint going down too dry. In order for paint to be smooth it has to go on wet enough to flow out but not so wet that it runs or sags. This is all technique.
The edge of the fan is dryer than the center so remember to overlap your passes so that each overlaps the previous by about 50%. Theoretically this lays down the same volume at the edge as in the center. With this in mind realize that the drier paint in the air is also settling on the part where you've just painted and areas you have yet to paint.
So the trick is to get an even WET coat on everything so that there is enough solvent to make the paint flow, and again this is all technique which comes from experience and I could sit here all day espousing theory but I'll never be able to give you the experience to perfect your technique.
The only way to get rid of overspray or orange peel is to wet sand the bumps off with like 600 grit or finer grit wet-or-dry and then polish. Scary stuff but if you have enough paint down you won't sand (or polish) through.
Keep us posted.
