Whatever makes people happy go for it! My belief is it is a waste of time and effort! I talked with an engineer friend of mine and he agreed......after adding belly weight (if needed) and then swivels, split rings (if needed) and hooks it shifts the balance of the weight of the bottom automatically......that becomes the pivot point and that is where you get your action from. Think about it. Just my .02 cents worth and in this economy....I owe you money!
PS-I have never ever seen a weighted, rigged plug body go belly up with the hardware facing the sky? Its always on the bottom.