Hey friend,
Nice outdoor grow you've got going. With the professor, you want to use the a and b through the whole grow...with the exception of possible flushing in the end. The gold and boost...those are the extras...the none essentials but definitely handy and helpful supplements.
You might not need the organic bloom if you're using the a and b and the bloom booster. But you'll find what works best for you by watching your plants.👍