There hasn't been much posted on this clinic lately, but there's now a way you can vicariously visit an op session ... kind of "reality video" applied to model railroading. Check out this video, just released by Model Trains Video:
Siskiyou Line Op SessionLIVE no.1
It's selling for $10, which is a great price. To learn more, click here.
This thread is pending me finishing up video volume 5, yes.
The layout was designed following the curve guidelines here on the Layout Design SIG web site. The curves in the yards are at 5X my longer rolling stock, which makes coupling on curves in the yard quite reliable most of the time.
Check out the above curve rule-of-thumb link. The insight in this one link has transformed my layout efforts from pipe-dreams into designs where I know exactly how the rolling stock will look and what is needed to get reliable performance.