Let's hope so! My general philosophy is 'test everything'. I'm not hoping to produce a monster on my first grow - if it gives me enough smoke to last to my next harvest, I'll be happy. Just wish I'd started 2 plants so I had an experimental control... will definitely do that next time.
I stupidly bought into the logic that reservoir changes should happen weekly. Although that makes sense in the current growth stage, it was a complete waste in the first few weeks. Getting water levels right before there were many roots was a learning curve too... I'm going to experiment with a little fogponics next time.
Getting nutrient strength right has been the hardest part... it didn't help that I didn't know what was meant by 'first true leaves' on the GHE packaging! I read some papers on Silicon/Fulvic acid and thought would be stupid not to incorporate both. I'm using both in the tank, and also as a foliar, especially after any sort of stress (have topped and FIM'd to see how it responds to both). I've got very tight internodes on my plant and I defoliated heavily because the mass of leaves and the overlap was getting ridiculous. I didn't account for the fact that the nutritional needs would drop as a result, resulting in my second over-fertilisation.
I'm in a 0.8x0.8m tent, but still went for the TSW 2000 to optimise PPFD. Currently at 600, which seems to be as high as I can go without stressing the plant at the moment.
So yeah - I've been keeping a diary/journal so I can avoid these same mistakes next time. I've also learned how TDS fluctuations teaches whether nutrient level is too low, too high or just right.
As much as I've learned, I know it's probably nothing compared to the amount I need to learn when I switch over to flowering! I've got all the nutrients I wanted for that phase (Canna Boost, PK13/14, Flora Kleen, Final Part/Ripen) and recognise how important it is to time and dose all these things for optimal returns. I'm not expecting to get it right first time, but I'm expecting to be much better informed for round 2!