you mean your last run in hydro was actually the tastiest stuff you have grown? i do think that environment is more important than anything, i know of people who grow dank on a bottle of £1 tomato feed. keep the plants happy and they will always reward you with sweet sticky nugs of fire.
i am opting for the dutch bottled organics of biobizz, i know a lot of the uk lads use it to great effect, if i like the results i might go down the route of mixing my own soil as you did, just bigger pots lol! i'm gently easing myself into organics, try it on one garden and see.
i am a proponent of doing whatever it take to get the plant the shape you want it OM. some strains will not require any topping at all but i never found a strain that didn't require some sort of input to produce well, unless you are running sog on clones with a couple of weeks veg max that is.
if you re growing out heirloom sativas and you know they will at least triple in height i think lst is the best medicine, tie the dominant branches to the rim of the pot and it will give better results than super cropping imo. i supercrop as a last resort kind of thing, when i have flipped to flower and one branch just starts shooting for the sky, i'll literally snap it in half to slow it down, around a week later ( usually when other branches have caught up) it will be back upright and have a big fat knuckle where i bent it over.
supercrop bud porn : g 13 haze, it still give me a big fat top but allowed the other sides to still produce some chunky buds too