I'm currently using Supernatural grow for my veg cycle.... and LoViNg it!
This is my first hydro grow and first time using Supernatural. I'll say the PH buffer works great, some people say they don't use ph up or down with it but I always ph my water to 5.7 then add the nutes, I figure save the buffer so it can do it's thing till I change the sauce. 1.5 tsp will up 5 gallons 250ppm so a little goes a long way. My roots are nice and white, I've had no problem with root slime or ph/ppm swings . I had a small bit of leaf tip burn the first time I changed the sauce and upped the ppm to much when they where still juveniles, added filtered water and they recovered really fast, other than that the nutes have been a breeze, I also add c/mag & Drip Clean.
I'm planning on using SuperNaturals whole line once I get to flower. Hope that helps a little I just haven't been using them long enough to give you any more info, but I highly recommend them!
UCDWC~