I don't have the battery Graco but do have a full on one, it is a brute I would not even think of spraying Helmi through. As you have a Fugi I'd try that. That finish in the photos could be bettered by a country mile with a microfibre roller and tipping off.
Proper flat needs sanding and polishing whatever you use.
Proper flat needs sanding and polishing whatever you use.