Howdy guys, new to the board, old to the game.
I don't use any "advanced nutes" at all. Like Homebrewer says, they are all just packaging and marketing scams to make as much money as possible from growers with no measurable benefit over anything you can find at Home Depot.
Plants have pretty simple nutritional requirements that are easily satisfied by common fertilizer brands that have been around for decades.
I have no difficulty at all achieving great quality and yields from generic organic soils (Lambert's Organic currently...the cheapest organic soil you can get at Home Depot) and plain old fertilizers. I use Espoma Plant Tone pretty much exclusively these days as my only nutrient from seed to finish.
I just follow the pkg directions, mix it 1 part to 25 parts soil, and then for every 2 cu/ft I toss in a cup of Espoma garden lime, a cup of diatomaceous earth (25 pounds for $20 at Home Depot), a coffee can full of composted steer manure, and I'm done. Never fertilize again after that I just use purified water, it's all in the dirt.
I mix that up real good in a big plastic bin, and let it sit for a month before I use it so the microbes and stuff can get growing really good in there. I grow in 3 gallon pots and rarely veg longer than two weeks after the seeds sprout, so there's plenty of nutrition for the whole grow in there.
All that other rot is for beginners who think this is rocket science, and the sort of folks who just want to be doing what it seems like everyone else is doing so they can "look cool".