If you bought a female as a normal, and she kind of has the Het Pied markers, and you have nothing better to breed to her than a Pied male, I would say try it. If you are buying PH Pieds, I would buy the ones that had the markers.
I have four Het Pied adult females, and one double Het Pied Axanthic male, and all of them have the Het Pied markers. The double het and my biggest Het Pied female have both proven out.
Dave