Anyone use/recommend the original plastic window sills?

I’m not a builder, just a homeowner. Window details worry me a bit on the rough opening. (no rigid foam installed).I plan:-wide and total vapor perm liquid flashing and corner… I’m not a builder, just a homeowner. Window details worry me a bit on the rough opening. (no rigid foam installed).I plan:-wide and total vapor perm liquid flashing and corner…Read MoreGreenBuildingAdvisor