Im using bio bizz light mix soil and follow the chart for that.....and yep always begin lower doses, for the first 3 weeks or so i had the seedling in coco for root development no nutes then in the soil i didnt feed nutes for another few weeks THEN i started to feed nutes and gradually bulld up, no burn, no defs, not that i can see so far. I dont use any of the other stuff.like fish mix or bioheaven, first grow using soil and biobizz, could.just be a hardy strain (NL Blue), but i do feed the combination of grow and bloom as per the chart, id say use them both as thr ganja still needs nitrogen while flowering, just a snaller anount IN COMPARISON to P and K....so when u add both the nutes the bloom nutes balance out the ratio of NPK to a more suitable level for flowering....its not that the plant needs less nitrogen in flower it needs more PK so probs vest to follow tge chart. not for veg obviously but for flowering it seems to be working perfectly