I'm well past the age of playing my dicks bigger than your dick. I'm not here to try and impress, like some people.
No my question was never answered. It's pretty clear that you dont understand the question, or you don't know the answer to the question. Which I have no problem with at all, as long as you don't respond to it like you do know.
So go ahead and read again, then with all that knowledge you posess, please explain the answer to me with a little bit of detail.
"If your topping off with extra nutes, your setting the plants up for possible problems.
Even though your adding the nutes at a specific EC/ppm, you have no idea which, or how much of each element the plant had already used since plants take in different elements from your solution at different times.
So for an example the plants used lots of N, but much less P and K, and your EC/PPM has dropped significantly. Now if you top off with more nutes to get your EC/PPM back up to that magic number.
Is it not likely that your building up the P and K to toxic levels since, Your meter is not going to decipher which of the elements is high or low, and only going to give you a total EC count?"