Those fresh pistol hairs look receptive to me. I'm just wondering on the details.
Here's my seed making routine:
How to make seeds: Two weeks after you 12/12 a girl you 12/12 a male. When balls show you take male to a separate makeshift bloom area with little circulation. When pollen starts popping out of sacks you bring your female to same area. With an artist's paint brush tap pollen sacks while holding a folded piece a paper to catch the pollen. Now just dip the brush in the pollen, and paint it on the buds of your female. Let sit an hour then blow off excess pollen, and return her to main bloom area. Discard male, or repeat for more opening pollen sacks. Partial pollination ok.