Okay This thread Died, but I just posted two tips I must share with all new users so here we go.
This was about Hiding parts of items not Seen and why.
Tip for ALL: The hide parts not seen in the render is the way it should be done. Here is why. All items in your scene will have lighting and shadow calculations done, that includes all parts UNDER clothing or not in the Render Viewport. That forces RAM to be used to do the calculations for the light(s) on the Diffuse map (texture you see) and all shadows on all Transparency Maps (the parts that are removed in things like Hair or plants), remember that includes items you will never see in the finished render.
So you get Calculations for a LEG under the pants. You get Calculations for items on the Pre Load FULL Set that are not in the render. Always HIDE parts that will not be seen and Delete items that will not cast a shadow into your finished render.
This is just good practice, it saves your System more ram to work on the RENDER you will see and it will speed up your render time.
This has been a Tip just because.
This was a Follow up that I think others should know.
One more TIP: Always save your Scene when you finish setting it up. Then Exit Daz 3D and restart, then load the saved scene and render. This is why. All the textures you TRY before you Render are loaded to a STACK (ram that grows as you add things to your scene) when you try them. They stay in RAM (the Stack) until you save the file. At that time pointers to only the textures used are created in the save file. Yes you also get the RAM back at that time. So why close and reload you ask? Because if your System does not FREE the allocated blocks at save (Fragmented Ram) closing the program FREES all pointers the software is using. If it does not FREE all the ram you have Issues with your OS and not the software (Unless it is written very badly).
I hope this can help other users. I’m sorry if you have read this before.