to be sure you get a good ammount of pollin id press my luck and keep spraying untill i figure pollin will fly , if you accidentally spray/kill some early pollin thats ok , you will have lots more
its like a natural male , once you see the flowers you can narrow the days down if you have experienced the strain in reg form
sounds like you got the timing bang on :thumbs:
lol its only maph for hermies
peace
EDIT : just thought,,,, you mean the reversed plant showed female 6 days ago ???
if so id say spray for a while , it should start showing male flowers soon , then you have the "approx" 10 day - 2 weeks till pollin flys , but thats perfect , your girl will have a nice ammount of pistils to recieve the pollin and you will get a great seed harvest
have the pistils started dieing on the reversed plant yet ? if they dont in the next 3-4 days id be a bit worried , not overly worried though , would mean to me that id wanna soak the plant twice a day/night , spraying like i was killin mites , on top and under the leaves , give it a good soaking , but be careful not to over water the plant , it wont drink from the soil like the other one , it will get a lot of its needed moisture from being sprayed
edit again : even though ppl claim c.s damages thier plants the ONLY time ive seen damage is because i over watered it (watered the same as the other plant/s) and i always soak mine every day untill done