Heres the thing.. You're trying too hard.. Seriously if you were to make a big bed of dirt, saturate it, plant seeds, put a couple cfl's in there 6-8" above soil and go away for a week, when you came back you'd be shocked at the progress.. You cannot rush this, you cannot enhance this.. The goal is to replicate nature, not surpass it..
Think about it, naturally in nature seedlings typically have obstacles to overcome before they can beat out grasses and perenials for full sunlight.. They sit down in a shaded humid area fighting like hell to stretch far enough so they can reach full sunight and beef themselves up.. They carry an enormous amount of nutrient reserves in their cotyledons (seedling leaves), and when those are depleted they can choose their growth rate based on nutrient/water/light availability, and can adjust accordingly to pretty much any natural gradual change and any moderate instantaneous change nature can facilitate.. It is worth noting though that cannabis evolved in areas where they could face extremely high temps early season, granted those would typically be coupled with high humidity.. The biggest challenge we face is actually buffering changes as well as nature does.. A potted plant faces much more drastic shifts than the ground itself.. And don't even get me started on the shitty buffering capacity of hydroponics.. Its pretty damned impressive that plants can handle spontaneous addition of >1000ppm NPK, base100 magnitude orders of pH shift in a single day, the drastic water depletion rate, and for that matter instantaneous shifts in lighting, but they do.. Perhaps thats the problem.. Because plants can handle such perversions of nature, its difficult, (but still necessary) to draw a line..
Word of advice, a carboard box works much better for small plant sustainment.. Thats a nice socket splitter though..