Have you mixed the Silver nitrate with ammonium thiosulfate as rob Clarke instructs for your stock solution?
Both Cs an sts block the ethylene production in the plant only allowing it to grow as a male when it's absorbed enough silver. Neither make the plant a herman
That being said Cs did the same thing for me, partial reverse an i never got the pollen to fly, lots of empty balls.
I only use strong sts 1:1 ratio now days, it never fails for me.
The pollen flies.
I start apply to the branch I want to reverse 2 weeks before flowers show, spray every day. an after a month or so the pollen will be ready.