Hi Todd,
I too have gotten a little confused on how to correctly install a closed, two inlet catch can onto my RB20. Have done plenty of research reading SK's and others advice and see varying setups and pictures.
However, someone posted up this picture of their engine bay, and no-one disputed the way that he had plumbed it up. Looks to be exactly the same as your diagram suggests. Can anyone confirm this setup is ok?
Hope this helps Todd,
Nath