My First "Real" Grow

Summary: After 3 other grows, 1 being slightly successful (ww auto - smoked great but weird smell, i wouldn't buy/sell) I can say this is an explosive growth over just 6 a week. @dianne suggestion to drop the light significantly from 32" to 24" was a big deal but also noticing the height growth - the other 3 grows were quite tall but still a few weeks from being the same diameter as the pot. This is either good - meaning I was wrong all along and think this is the case; or bad because the light is too close and it just wants to grow outward? Either way they're beautiful and I'm so happy so thank you @dianne :) See my last picture, shows ~1cm whereas i'm used to ~1". Question: These are fem seeds and not auto, so I want to take full advantage of that as I didn't do much training w/ autos. I don't know any techniques other than pruning which I'm comfortable with during veg. I want to "bend" these out to the corners where the bamboo stakes are and eventually get to scrog. When should I begin tying the plants to the stakes so they "bend"? Garduino: So far it's been progressing well. Look through pictures and you'll see it goes from breadboarding to making a circuit. The image where it's laid out on the table from left to right: there are four sensors that have a power, ground, and data wire. The data wire sends back a value from 0 (wet) to 1023 (dry) to the arduino (center). There is some code that converts these values into measurements of "when to water" - this is still being developed as I need to add a few resistors to the circuit in order to make all 4 sensors return uniform results in similar conditions. I'll explain that next week in more detail. Anyway, the arduino also has a sensor on top of it that measures temperature, humidity, ultraviolet-A and -B spectrum values, UV index, and pressure. This is the original sensor I recommended last week and I've just built on top of. To the right are some wires that aren't hooked up yet, but are power and ground to what will be motors. When one of the 4 soil sensors returns a "dry" value it will automatically pull water into that pot until it reaches a "wet" value we desire depending on the growth cycle of the plant.