I have to agree. I noticed similar.
I dont know enough to hypothesize with confidence but it might be a function of root mass + capillary action of ready available nutrients.
on the thread linked above, the plants in the 0.5 gallon pot were smaller than the last few plants in 1 and 2 gallon pots.
seems 2gall sleeve on an octopup = large plant. 1gall = manageable plant.
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