Thanks for the responses.

So I understand that if I start pairing them now then the females might start to build. But is it probable that they will then use his (retained) sperm for fertilization if they don't have good sized follicles until well after he's gone? Or would I still have to introduce another male to them after they have started developing follicles? Because if it's unlikely for the banana to sire any of the clutches then I will just pair them to the males that I can use all season long.