I've used scotts for a few grows now with little issues. Like u were sayin, it's got very litte as far as nutes go, even if they say it'll feed for 4 months that aint gonna happen. I've found it does well with seedlings and new clones without burning any of them. Out of the bag, it come fairly high in N, with less than needed P and K. What it lacks imo, is ph buffering so u gotta watch ur ph, nutes are easy to add to any soil mix, it's the ph u gotta watch for. With scotts i first found it to tend to dip into the acidic levels of 4-5ph with, no lime for buffering, and 40% perlite added using fox farms products. As of right now, i've got the same soil with some lime added into it as well that just ran up to 8-8.5 ph causing a multitude of problems but i digress... My soil ph issues are the result of my own default, in the past i've had great results and will continue to in the future. U really gotta keep an eye on that ph, with ANY soil mix.