Now you are just being silly ,because you can not provide one bit of evidence that shows SFLs have lower DDs than SGLs.

We both know that the biodiversity CC of northern hardwoods is only 8 DPSM and that 40 DPSM is the MSY CC. But in 2G where the herd is being managed at around 8-9 DPSM the forest health is still rated poor the the amount of regeneration is decreasing rather than increasing.