hi tazard,
scrogging is a pain in the ass way to grow, but your potential yield can well be worth it. im on my second scrog and both times were unplanned and implemented to control a grow that got too big. which makes it even harder, lol.
first grow i kept pretty much everything, more defol than pruning. things got dangerously crowded and i was at very high risk for mold. i did get 2.25 lbs dry from just under a sq. meter tho, hair over a gram per watt which is insane for a.first time grower expecting 8 to 10 oz!
however, that was.crazy luck and i will NOT be risking the overcrowding again. fungus rot can run thru and destroy an entire crop almost overnight. screw that. so.yeah, i will be pruning the shit out of this run.
i just topped and switched to 12/12 this weekend, next weekend i will begin thinning them out as i have nearly twice the growth i need right now.
you can follow the tutorial as closely as you want, just keep the fundamental basics of growing in mind, and leave enough room in there for them to get air and light.
good.luck.tazard. i know how overwhelming a scrog grow can be!