HAHA so I wont say "I told you so" about toping them if you +rep me hahaha... The video is nice man, my inter-node spaceing seems alot closer and tighter than yours which could due to the 12/12 from start, strain type, medium used, or amount of lumen per sq ft. When your picking the breeding pairs take in consideration how close each bud site is to one another, try to pick the plants that have the tightest bud spaceing. There are alot of differant things to consider when picking what plant to have sex with the other just dont forget about the node spaceing cause thats directly effects the yield. Taking good records and notes about each strain(including how it tastes, yield, harvest time, and anything and everything else you see fit) is also a good thing.
Its just hard to compare what I have going to yours as its apples and oranges, I am total hydro and have over 6000 lumen per sq ft. If I look at my plants then your video it looks like yours arnt getting enough light even though I think they are just because my buds are alot closer to eachother and dont look as streached out. Dont worrie about it though, like I said theres a ton of differance between your grow and mine.
Your grow is going just fine. If those tall ladys are making you hang the lamp higher from the rest of the canopy there is something you can do. You can "supercrop" or in other words pinch the stem of the tall plant with your fingers going arround in a circle. Pinch it hard and sort of crush it a "little bit" untill it starts to bend over because it cant support its self. You will have to support it with a string/tommato stake or support it with the plant next to it or whatever. Dont worrie about hurting the plant, your just crushing it enough to fold it over. You even have to keep watching it after you have lowered your lamp(s) because they will "heal" quick and turn and grow back up to the lamp. I have done this quite bit when I had a smaller space with a SOG grow to keep the canopy more even. Later in that same small room I did SCROG. The screen in the room was easier to keep the canopy even but I couldnt move a plant arround or take one out of the room without pretty much killing it while trying to unwind the branches from the metal garden fence I had set up as a trelise.