They look pretty damn good. keep up the good work!

Flush tip: right before harvest, flush until runoff is completely clear. Usually 2-3 times as much water as the volume of your plant container (5gal container=10-15 gal water).
Allow the medium to dry out really well for a few days, then repeat the process (more water on the last flush is always better). Allow the soil/medium to dry out completely before harvesting.
This has been tried and tested many times with excellent results. If you try this, feel free to post results for others to see.

Hope this helps...