I find bag seed is hard to grow. As an experiment I started some bagseed from a friend and some Nirvana Papaya at the same time. All conditions were equal. The Papaya seed (in the middle) out performed the bag seeds during the first 3 weeks.

Didn't get to finish any of it...had to abort the grow.....but, the point is: good genetics with good hybrid vigor sure makes growing easier...IMO.