with my organics it does not seem I can overfeed. I use bio bizz base with guanos and fish ADDED in and no problems. I have three feeds so far only a month in veg. No burns. The plants just seem to eat it if they want it. If they dont no prob.
I did an experiment. I water fed one. I water fed another. I light fed another, and I heavy fed one. The water fed is doing the best, then the heavy feed, then the other water feed, then light feed. Go figure. They eat hwat they need when it is organic.
Those were lr2s. My widow cindy is starving all the time. I feed the next 6 hours she beasts out. She is prob male. The others green off and grow too, but other plants are hungry at different levels/
from what I have read about organics they say start low in eveg and work up and byt he time you are in flower only full str feeds. But those are all organics, I would strat low with inorganic P feeds and build up. Those rapid salts just inject right in.