Top Gun and Froot by the Foot

Day 83 from plant. This is the final week of flowering for the girls, I plan on chopping on 4/20. The Top Gun could definitely go longer but could only go so long with this first grow. Still showing a good amount of white pistils and not so dense nugs. FBTF is falling over, all of the stems seem to being really weak on all of my plants. Top Gun (1 gal) has stopped taking water, the cola is pretty dense is looking real cool. The plan is to go lights out with no water two days before chopping, any other advice is very welcome. Gonna get good final pictures too.