I use Advanced Nutrients pH Perfect Connoisseur (with essentially all of the usual AN additives) in 80/20 coco coir/perlite. I don't think I'm missing much, if anything, by not using AN's Sensi Coco or other brand of coco-specific base nutrients. I supplement with Ca/Mg -- during vegetative growth mostly using Gen. Hydro. CALiMAGic (1-0-0) and AN Sensi Cal Mag Xtra (4-0-0; with amino acids/nitrogen) about 1/3 times; and only use CALiMAGic during flowering/bloom. I add 2-3 mL/L with every feeding, cutting back some when feeding AN Big Bud Coco which has Ca/Mg. And when hints of Ca/Mg deficiency start to show, which for me seems to always happen in pre/early bloom, I simply do additional foliar feeding, including with epsom salt.
From my perspective, pH Perfect Connoisseur Grow and Bloom combine probably the best base nutes (with higher-end chelated nutrients; with some other products likely just as good) with rather unique pH Perfect technology, which actually works.
Otherwise, I'm totally ready to switch to Advanced Nutrients pH Perfect Connoisseur Coco if/when it ever actually comes out. See the AN "Coming Soon" Web page at http://www.advancednutrients.com/products/ph-perfect-connoisseur-bloom-coco-ab/. The new coco-specific Connoisseur products have been totally virtual/bogus products, promised and hyped seemingly for a year or more now.
From my perspective, pH Perfect Connoisseur Grow and Bloom combine probably the best base nutes (with higher-end chelated nutrients; with some other products likely just as good) with rather unique pH Perfect technology, which actually works.
Otherwise, I'm totally ready to switch to Advanced Nutrients pH Perfect Connoisseur Coco if/when it ever actually comes out. See the AN "Coming Soon" Web page at http://www.advancednutrients.com/products/ph-perfect-connoisseur-bloom-coco-ab/. The new coco-specific Connoisseur products have been totally virtual/bogus products, promised and hyped seemingly for a year or more now.