I have been using Cutting Edge Solutions 3 part solution in coco for about 6 months now and I swear by it. its not organic but either is anything else I consume so IDC, very easy to work with, i keep my nutes to about 1/2 strength to not burn the plants and up the strength only if they are showing me hunger signs. I cant stand 20 bottles of stuff to grow a plant, i can barely stand mixing the 3 part, but have gotten better results from the 3-part so stickin with it.
Advice for non-organic nutes: using a chemical nute builds up toxic salts in your medium fast, (at least with coco) Flush regularly. As your plant drinks the water, your solution's PH wil become acid (more concentrated) if adding to a reservor, only add water. Add nutes at the reservor/nutrient change. Every time I feed, I water the next 2 times, the third watering is a flush and feed, then water next 2 times, then flush and feed and so on unless they tell me I they need something.
You shouldnt have any problems as long as you pay close attention to what your plants are doing, i check mine everyday so I can run off the pests before they fully infiltrate, and so I know how the plants are doing ie.... what they need, or if I have overdosed them on nutes, basically any issue as long as you get to it fast wont be an issue. Use common sense and you"ll be fine...... A saying I picked up here at Rollitup that I absolutly live by now; "When in doubt, flush it out."
Never Heard of Crop Nutrients, but its probably pretty similar to Cutting Edge. started a new round in soil and am using Fox Farms Grow Big and Tiger Bloom at the moment. Soil is less work for me so its nice right now.