GH rocks.
WOW, alot of you use the Lucas formula. I too used it for a couple of years.
But,imho, I found it better usuing the whole 3part(gro)
I too did some "experiments" back in the day with usuing the 3 part as compared to the LF.
I noticed a difference in Veg time, usuing the 3 part, it vegged a little faster, mind you, only a week or so, but thats huge in a MJ plants lifespan. I also saw better, lusher growth on heavily influence Indica plants. Not so much with Sativa dominant strains.
The plants also seemed to stay "healthier" thoughout the whole grow usuing the whole 3 part. When I used the LF, alot of leaf would die off twords the end of the grow, whereas when I used the whole 3 part, they are super healthy and lush to the day of harvest.
These were my observations anyway. I tried both, and ran both for at least a couple of years, but I use all 3 now and would never go back.
The one KEY thing that the LF made me realize, which I apply to all my grows ever since is this " Less is BETTER". I use alot less then recommended, that is for sure. I figured, if you can do a whole grow without the "grow" and still get good results, then u can use all 3, but just less of all 3 and it should be great. It was, and is.
My 2 cents anyway.