If it was me i would feed Lightly one more time, then start flushing a week before harvest, but not after 2 days before harvest. But that is just my method. 400 watt hps is a great light. With that lighting watch how they pack the wieght on the last few weeks.It is important to allow them to grow for 2 more weeks or so.A plant puts most of it's wieght the last few weeks. Just be patient! I know it is hard, but it will be worth it.The taste will be great, but i must say again.When i was smoking it, there were a few times i had to go sit down.If you know what i mean! Not sure what it is you like, but if you want an up and active energy high the royal queen royal dwarf or royal auto's are a great choice. Economical and easy to grow.They have a great body stone and can be a little on the speedy/trippy side.great for that get up and go in the morning.I will be starting some in a few days. Looking foward to your final results, and a smoke report. You could probaly take a sample in another week or so. I would think if the due date is the 25 they should be about ready then, give or take a few days from the looks of the pics, and if trichromes are starting to get cloudy.My current grow will be ready around april 1st.It is sweet seed fast bud#2 and kannabia seeds hobbit.What for soil are you using? Was just thinking that might effect whether you feed one more time or not.