You can follow the directions on the feed chart that CC suggest....basically with most strains, you do not need to go higher than 800PPM during "peak" flowering. Around week 6 or 7 of flowering the plants are not going to be using much nutrients anyhow and that is about the time that most strains start to slow in up-taking nutrients from the solution....
You want the plants to start using up stored supplies in the fan leaves during the late flowering periods. CS nutrients will indeed produce a super nice clean end product, but then again so will other brands when they are NOT over used as in most cases unfortunately.....
You will most likely need to add Cal/Mag to the list especially if your using RO water. CS nutrients worked well as long as cal/mag was added. I must admit that I was really disappointing that CS Nutrients still required the addition of cal/mag as do most all nutrients except for a few that I have tested in the UC system.
Considering the guys that made the system are so knowledgeable as to design such a awesome system (the best on the market IMO) also made the CS nutrients, you would have thought this would have been on the "list" so to speak. I "hate" always having to purchase and supplement with cal/mag when the nutrient "claims" to be "complete".....And I do fully admit that this cal/mag thing is a pet pee of mine......Im a cheapskate when it comes to spending money on nutrients....I also admit that as well.....lol
One of the best things I could say about the CS nutrients from my experience was the low PPM's never exceeding 800PPM (x5 conversion), but the other nutrients I used in the UC system required less also so IMVHO it is the design of the UC itself that makes it so efficient at nutrient delivery to the plants.
I guess I was just expecting a lot more from CS nutrients considering how blown away I was with the UC system itself as I have been using this system since its been available. And since the CS nutrients didnt become available until much later, I had already been spoiled by the awesome performance of the system.....so when I got the CS nutrients to try, and it didnt stop the earth from spinning for about a day or two like it did when I got the UC system......I was disappointed.
Did some side by side testing using UC roots in one side and bleach in the other. The side using bleach did as well as the side using UC Roots......also did another test but used chlorine instead of bleach and that test worked just as well also, meaning I could not tell which plants got UC Roots and which got bleach or chlorine......IMO, UC Roots is not worth the money as bleach or chlorine will work just as well......Bleach has been used in the agricultural industry worldwide in damn near every greenhouse you will find.
Before using CS nutrients,
Heavy 16 was used and also Ionic one part and both of those did as well or better than CS Nutrients IMVHO.
Another nutrient program that worked as well or better was the combo of
Dyna-Gro Bloom, cal/mag/ and Protek using H202 @ 29% weekly.