I think this is a bad idea because what I read is the Osta and LGD binds to the same muscle anabolic receptors than AAS.
If you always sacrify your lipids, cholesterol, blood pressure, hair, etc etc to have AAS in your blood to bind the receptors, if the receptors are already budy with LGD and Osta it would be stupid.
Osta is a good choice for pct or off cycle and ldg is made to be taken on trt or off cycle but at a lower dose to recover fast the HPTA.