Supplements/additives with CNS17?

Good day fellow growers and smokers
I have been running CNS17 for the past year with amazing results. I use their coco/soil formula with Promix as my medium. I love Promix! Fortunately I haven't run into any deficiencies since switching from the Pure Blend Pro formula.

I recently purchased a bottle of silica blast to add to my feeding but was curious if there is any supplements/additives CNS17 fails to provide...?

Obviously the plants do not think so visually but I was considering adding botanicare sweet and or liquid karma if that would even result in noticeable benefits for both the plant and the consumer?

If you are using or considered using CNS17 would you add anything else to their three part grow,bloom,ripe formula?

http://www.botanicare.com/CNS17-Grow-Formula-3-1-2-P61.aspx
http://www.botanicare.com/CNS17-Ripe-Formula-1-5-4-P63.aspx
http://www.botanicare.com/CNS17-Bloom-Formula-2-2-3-P60C2.aspx

I found the only thing that might be needed on top of the cns-17 is cal-mag.
I just got done running that stuff for a year or so also. I was using the soil&coco, but I got buddies all over the bay area using the reg formula. There is only one formula/label being produced now anyways.

But yeah, cal-mag, if say your in coco, and/or RO water.
I never used more than 15 ml/gal max of the cns-17. How much are you using? I used the grow for veg + 1 week into flower. Bloom for flower until 3 weeks before chop time. Ripe until chop time. Shits good, I just didnt like having to mix with warm water first. And it gunks up pump filters in my hydro setups.

I've tried allot of different nutes in the last 2 decades, and at the end of the day, cns-17 is just another good 1 part nutrient formula. Nothing super special, but good. IMO, and experience, those additives you mentioned are totally unnecessary using synthetics.