Are Speckled eggs harder to hatch?

[Egzermalda]

Are speckled eggs harder to hatch? I have Orpingtons. The Blue and Splash eggs are smooth and hatch readily. The Black Laced Silver have various levels of speckling and I do not get as good a hatch rate with them. And the more heavily speckled ones (from one hen) develop but never seem to pip. The center egg in the last pic is a Red Sex-link. But the rest are the Orpington eggs in question.

 

[mcdze]

ive never noticed the coloration to be a factor, but definitely porous looking shells rarely hatch for me, shine a light at it and the pores light up .. i dont try to incubate those anymore ..