I've never measured my harvest weights- I've run perpetual all along so it's kinda pointless- but if you are trying to max out yield from a strain then you should know where its maximum feeding level is, measured in EC, rather than ppm as I've been advised; there are 2 different ppm conversions that are relative to the EC/ppm relationship with Sodium chloride and straight EC is the number you want. \

Now, running all the way hot is the way that a cashcropper or anyone growing really intensively is going to find levels on a new strain. For just the plain ol home grower who isn't looking for those last 10 grams under his k, the other way to go is start weak and go up until deficiency symptoms stop. I'd recommend doing that in a new SYSTEM that you have never used before, or running new nutes. I just set up an ebb n flow in a new space and started real low- like EC=0.6 lol- because I didn't know how the tender clones would take it, combined with whatever high temps I may have had to battle. Once I decided that the temps were good and the clones were toughened up, I cranked up to 1.5 and am sitting there right now. It's a 2x4 tray of MIXED strains and in a situation like that you have to remember you are limited by the lightest-feeding of your strains.

Um- this is kinda long winded I guess but if you are going for total max production in your space, and know that your equipment is configured optimally, hell yeah crank up those nutes (try 1.6 EC to start, and work up .1 every couple days, looking for crispy tips) as much as the plants will eat.