I've been corresponding with you under a different name on GrassCity (WildBill).
Megacrop ppm isn't a concern, because adding more gives a higher ppm, which can be anything you want it to be.
My measurements indicate that 1 g of MC in 1 Gal water produces a ppm(500)=128, and the most I've used in DWC is about 4 g/Gal.
The reason people bad mouth autos is ignorance.
Either they've heard that autos are bad, or they grew some from a bad breeder that rushed them to market.
Any of the auto breeders that advertise here will be excellent, mephisto is the easiest to deal with, and has the best freebies.
I did a breeder survey a few months ago, comparing breeder listed potencies for autos and photos of the same strain name.
The photos averaged about 17%, the autos about 16%.
My biggest yielding plant ever was an auto that yielded almost a pound dry.
The biggest problem is that they sometimes veg too long and get too big.
I think it's a no-brainer to grow autos with Megacrop, or some other 1 part nute, and I predict that within a few years, almost all home growers will be growing autos with a one part fertilizer.
A fucking pound dry from an auto? Good lord, I may need to hop on that lol!
Is Mephisto a seedbank? I bought from CropKing for my first run, but later on I was told they have worse/inconsistent phenotype. Which is why some of my feminized seed plants grew out to look kind of different in terms of cola formation in my first run.