I can't agree about the seeds, no two individuals are alike, even with an ultra true breeding strain, and other strains have too many phenos to really call phenos..
And I'm aware of the purpose of leaves.. They are the power-houses of photosynthesis, but buds are green too, and therefore contain chloroplyll.. There are chloroplasts in the calyxes, just not in the pistils.. So even buds with a good flower:leaf ratio will need to be in good light..
Again though, I'm not a fan of cutting without serious reason.. Fan leaves are warehouses filled with alot of product the plant will call for later..