Anyone have experience with Devoe's Devflex HP 4216? We're repainting our kitchen cabinets, and seeing major brush strokes. We cleaned, primed with Gripper, and sanded, then added the 4216 topcoat. Paint store said to add Floetrol, didn't help. Called the company and they said to add water, not more than 5%. Helped it flow a bit better, but still major paint brush lines. Using a nylon polyester brush. Any suggestions? Thanks!