Their ph up is awesome! I think yield can be had with nftg, just might require a little more attention to detail. +1 to the slf-100. If you dont use it the top of your soil will become a thick layer of bone meal armor. It does alot more than that but thatll be the first thing you notice. I run the slf, extreme mykos wp and mammoth p for innoculants. The only 2 bottles you dont get in the kit that i feel are integral is the aphordites extraction and hygea hydration. I have switched to npk raw line yucca to replace the hygea as its much more cost effective. I run it in every feeding. People suggest only using it if you let your soil get too dry to help rehydrate it but imo, using it every watering helps to insure you get even and complete soil saturation and the microbes in your soil love to eat it. The aphrodites i only use during flower. If you use the bloom khaos, you need to use a 2:1 ratio of herc. 2tbsp herc to 1 tsp bloom khaos. The demeters is where your magnesium comes from though it dosnt contain it. If running peat or coco, theres already plenty of mag in there! You just need to make it available to the plants. Hope this helps