I am only using their Bio-Bloom - it does what it says, hehe. I decided not to use their Grow and replace it with simple sugars and honey. Also, replaced their TopMax with Humic Extract. I use Guano-extract for extra P and palm-tree ashes for extra K. I can play with the doses to get more P during the first half of flowering and more K during the rest of the flowering. In combination with the Humin, I get a better bloom-booster than TopMax, I think - not that I've used it, though. Both the Humin and Guano I have decided to use and use them as replacement, because that way the quality really can't get any better, imo. I sampled buds from 6th week - the taste is superb even though the buds were quick-dried and I hadn't flushed. Organics are the way if you want real quality, imho. Don't know about the prices, though - I order online and they seem relatively cheap - except for the Bio-Heaven and the Root stimulant.
Also, I have a question of my own, witch I hope is not a problem to post here:
For how long can I use the Bloom? It's my second run with that bottle and it has changed its smell a tad.
Peace and Blessings.