What I mean by double coat is basically a heavy overlap-you spray with a 50% overlap on the gun's pattern,but.... When you come down the side of a car everything's cool,you come across the top surfaces and thing's are cool,now you come across the front and things are cool,except where those 3 places intersect,like the top corner of the car.Basically you've tripple coated a corner through all this so you have to concentrate on this spot.If you look at a car before you shoot it and play it in your head there's going to be places that get double coated so you have to take this into account and actually look at them(after you paint long enough you kind of paint 'blind' and only pay attention to trouble spots,muscle memory takes care of the majority of it).There are spots on any job that can get a sag or run so you figure out those spot's first and remember them.Leave your pattern alone for the fender junction to the side.I actually paint backwards from bottom to top sometimes and this is a car I did it on.Run the side and follow the contours,just keep the gun the same distance from the work.When you get to the fender/side junction it's just a flick of the wrist to transition but keep moving the gun.I slow down a touch as i roll the corner but go right back to normal pass speed.When you seal it you'll pick it up,it's really no biggie.Just think like the paint,you need to get into a tight corner so you need to get in there but if the gun sits there the fluid will hose in and the air will blow it around,just come in,slow for the wrist rotate a touch and go back to normal.Don't worry about it,it'll happen almost instinctively.