Feminized seeds

[Matriumcauthon]

I'm wanting to try to make some feminized seeds using some clones off a couple plants i just lost. My only question is should I put them both in the box on 12/12 at the same time (removing the one im treating when spraying to avoid overspray of course), or should I put the one im making produce pollen in a week or two earlier than the one I want to produce seeds?

 

[ChadWestport]

I'm not sure if this holds true for reversing, but I always put the ladies in 1 to 2 weeks before the male. The females take a few days longer to get going and you also want to have a decent amount of pistils that will receive the pollen. The male usually starts dropping active pollen within 7-10 days. With the offset, I tend to get it right. I also only leave the male in for 4-5 days once it started dropping pollen. You'll see the pistils turn brown if they got pollinated, so visually it is easy to see if the male is needed any longer.