No Nuts.. to early.... Keep the flors as close as you can to the plants (1cm)..
They will be ready for HPS in 10 days.... HPS 24 inches from top of plant with fan/airflow blowing on plants.. move HPS 1 inch closer to plants every day until 6-16 inches from top of plants depending on airflow and HPS wattage..

With adequate air flow you can get lights right on top of your plants which will really enhance your yield and density of buds..

good luck...



: )