Just keep reading. You're on the right track. Self educate rather than relying heavily on the advice of others... That said, I'll give you my input. Decide if you are going to sog or scrog and then read all you can. You want to have your screen in place in time for the flip or shortly there after. You can start training in veg by LST the main stem after 5 weeks or so and then put them under a screen before they get to flower. That's an option which helps manage growth in the right direction. It is certainly not a requirement. Don't do any LST, topping, etc. for a week before you flip. They will start growing 3 - 4 days after the flip and they won't stop for 20 - 30 days. Stavia's stretch more than indicas. Plan for at 3x stretch so you can accommodate any strain. A popular technique to build a scrog screen is to constructed a frame out of 3/4" PVC. Then zip tie a screen in place made from 2" x 3" plastic coated rabbit fencing. Other sized will do but best not smaller than 2". Do not be tempted to use chicken wire. It can rip up the plant stems. The screen can be fitted to the wall by sitting the frame on a few bits of 2x4 screwed into the wall. I don't have experience implementing sog but the concepts are similar - spread the plant to achieve an even canopy and better light penetration. Scrog will be shorter by definition.

I took a look at the album you posted under your profile and left you a message. Have a look!
bigsby Reviewed by bigsby on . 400watt hps Budbox grow! Im starting off my budbox grow next week when i get some clones from a friend. The budbox is 1.2m x 1.2m square with: 400watt hps lighting kit & Reflector Extraction system & Carbon filter 4x15litre pots 1 bag of Plagron light mix Digital Thermometer & Humidifier Ph kit with ph up + down The Nutes + addatives ill be using are: Rating: 5