Right on! i am getting the same effect. 3 plants in 10 gallon totes. they have aero looking roots up top then a nice solid root ball as well.
as far as the protekt goes What trace nutrients does it contain besides the silica.
http://titanarum.uconn.edu/msds/Pro-Tekt_DataSheet.pdf
I am not into all that technical shit, you know I just go by what works and what doesn't. I tried to run without it thinking it was no big deal, and it was so noticeable I will never run without it ever. Even if I do not even use DynaGro line, but I don't see neither happening. Note: others make a similar product and I have used rhino skin and Silicablast both with good results too.
I been at this 5 years and I have spent thousand$ on peoples word, companies claims, and so on. DynaGro not only did EVERYTHING without even a whisper of a claim to me, nor did I hear many claiming its praises until Homebrewer. I tried it, and it blew me away so much I don't even think about looking for another nute right now, SHIT I CANT KEEP UP WITH THIS ONE!! HAHAHA. Five years ago you told me I would say that, I would have thought you were nuts.
I am NO PRO or EXPERT I only go off data MYSELF observe, sure it may start from someones thread or recommendation but I don't blindly follow anything or anyone. This stuff is the real deal, real inexpensive, real simple, real clean... what more then I can ask for except for it to trim, cure and roll my joints for me. Maybe someday! LOL.
Getting up a bit higher with the Sugar Black Rose... mmm some reviews said it was "meh" but let me tell you its a GOOD VERY GOOD producer, stout short and think stems and flowers. Smoke is smooth, kind of piney yet menthol somewhat.. different then I have had (that is good). Very easy to grow and finishes in about 54 days (I like mine milky with bit of amber). High right now at about 8 days dry and cure time (early) is uppy, head pressure a bit, hangs around for while with impact pretty quick after couple good bong rips.
Curing note as well: I used to dry until about a relative humidity(RH) to 58 or so, which I thought was good which it is, BUT it robs of a lot of potency, taste and smell. I now stop drying and cure now at about 65% RH, with the checking, opening to smoke/test, smell etc.. the higher moisture lets curing to smell, get more potent and taste soo much better. 55-58% is too dry, if you want the best possible product. I am thinking I am going to slow down a bit now when I hit 70% in jars to even slow it more. Just keep an eye on them until about 65% then you can let them sit for days to burp and get amazing smells, taste then I had at lower RH.