I think a soil moisture meter would work better than trying to weigh it.
The plant itself is growing mass, after defoliating the weight will be less?
Was a lame attempt at humor on my end. When I say my plant is an Auto-Defoliator, I meant I never needed to defoliate as the plant seems to do it by itself.. Not one leaf lived all the way to the end. In fact, all I was left with at the end was Flower, every single leaf died but my buds stayed alive and green. Overwatering caused huge problems for me and my plant never fully recovered, A miracle I got any bud at all....