I would not think about chopping this plant just yet. prob has another few weeks on it.
You want trichomes to be almost all cloudy with hints of amber. like 5%, best way to indicate if they are ready.
The defoliation and topping you performed I think set this one back a bit though. Could have been a bit bigger and hefty. It also looks to be boarding on N toxicity as well. This link is a great resource for auto feeding,https://www.autoflower.net/forums/threads/med-man-method-feeding-chart-ppm-ec.47856/
Next time growing this auto try not to top it and just play aorund with LST. Dinafem is a great breeder sad they are no longer in operation. or maybe just not under that name anymore who knows.
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