I am in he process of dismanteling an existing layout and designing a new layout, I am going to have a yard on my new layout, something I didn't have before.I am going to use it mainly as an area to store some of my rolling stock, but will also want to move some of the cars around. I am modeling in HO scale and intend to have about 6-8 tracks in my yard to store the rolling stock. My question is what size turnouts should I use in the yard #4,#6 or #8. I am sure there is some more information that is probably needed to answer this question, I am just looking for some rough idea how to go about this without making a complete disaster out of the finished product. Thank You for any help in this matter.