I was going to suggest using risers, just a lot of people seem against them for some reason, I seen a training clip somewhere in one of the pictures, so I figured he didn't want to do anymore lst or much of it. I try to avoid topping or fimming unless I just can't keep up with the plant and desperately need space. But I have a system down for my grows already to maximize everything for given space, I just start training while they are small, and everything I grow is indica dominant so I don't have to worry about running out of vertical height just horizontal. I like em short and wide.