first off, i don't think you have anything to worry about as far as the cops are concerned. they are looking for the heat put off by large growhouses, not your five plant set up. As long as your not venting a lot of heat, you should be fine.

I've heard it's bad for bud production to go from flower to veg to flower. I would not recommend it. Just wait for them to show sex or cover a branch with a black light-proof bag 12 hrs a day then 12 hours of light. the covered area will begin to show sex, and you will not have to flower the entire plant.

Sorry about the 5 males. Thats some awful luck.