I've been using the AN pH Perfect Sensi A and B for a few months now. So far it's been about 24 plants of various strains. Ghaze x Diesel, Psirens, RRF, Bad Betty, Parkistani Ryder, Duurty Dragon and PR x BB. All grown in straight Pro Mix. The only additives I'm using are B-52 and Overdrive. I feed them with every watering. Under LEDs and using HP, I normally water about every 4 days. I've found that they tolerate 1/2 strength very well. It wasn't till I pushed them to 3/4 that I saw a little nute burn. So far I've not experienced any deficiencies so have not had to supplement with anything. No cal/mag, no molasses, no epsom salts. As always, I check my pots when the grow is finished and found very little salt build up in the pots. So far, here's what I've observed.
My veg growth is much better than what I've ever had using
of GO Biothrive. The plants are bigger, stronger and in general much healthier. It's not a huge difference, but it is noticeable.
Pro Mix starter nutes are being exhausted by about 12 - 15 days. Have been starting 1/4 strength at that point with excellent results.
I haven't seen the big, explosive buds that Jackal has gotten but that's mainly from the strains I've been growing. I had a bad run of runts, especially from the GhxD and RRF. The buds were much fatter with a few that only got to 7 - 8" tall being almost as big in diameter.
Trichome coverage is noticeable increased.
The previously mentioned female dominance.
As long as I have rain water it's working as advertised, bringing my pH to the desired range. However if I have to use tap water, it's not as effective. There is a direct correlation between the starting ppm of the water and it's ability to properly adjust the pH. Where my rain water generally runs around 60 ppm, my tap can go as high as 300. At 300 ppm it will not bring the pH down enough. I'm still tracking this and when I have more data, will elaborate.