Well, EFF ME! I would like to give you a medal for the most honest title to a question ever! Well done mate!
That lower shitty/spindly growth is a result of them not getting enough light. Due to your SCRoG system, your plant has developed a very dense canopy and this results in too little light getting through to those lower and inner sections. I would recommend some "lollipopping" of the branches and to remove the small spindly growth all together. This way your plant will no longer be wasting her energy with growing the smaller/inner branches. After removing all the little bits that will never grow into decent flowers, the top parts that are receiving the most sun will then flourish, without the energy drain that those small inner branches are causing. I doubt much of that inner growth was producing any worthwhile energy due to being so shaded, so to remove them should not cause too much "shock" to the rest of your plant. Once only the tops are left, growth should increase, as the tops are getting most of the sun, meaning that they are also producing most of your plants energy, so the removal of the inner growth should produce no problems due to a reduction in energy production. Otherwise your plants look healthy enough and don't seem to be lacking any nutrition. If you are unfamiliar with "lollipopping", I'm sure there would be plenty of demos on youtube. I also agree with you about starting seeds directly in soil, no need to cater to namby pamby weak seedlings. Plus there is less chance of damage, no transplant issues, they get nutrients from the instant they are "born", they are not drowning in a glass of water, they are not growing one way in relation to gravity then another when they are planted, they are just doing it themselves - just like nature intended!
Hope this helps,.... Organoman.
P.S. - if you want an awesome organic product to use on your super soil, try "Bio-Vega" by Bio-Canna. Effing excellent, but half strength is plenty.