So if I understand correctly, the time a crop spend in the last stage is reduced from the next cycle of the crop, so when i went to plant the seeds 6 hours apart to have 3 shots at the +5 I was going to only harvest at the same time I was gonna sow, hoping it would mean i would have the 3 parts be ready at the same time, but then I realized: if I don't harvest them i won't know which one of the 3 got the highest quality so I won't need which part to harvest first, so it would be neat if we can inspect crops to check the quality and know which crop to reap first
Tldr: add crop inspection to harvestable crops to know the quality so we can take advantage of the time accumulation mechanic on crops