The technique is from a SPICA article by the Oregon Alfa club chapter, and describes the RPM drop you already know about. I wonder if playing around within the CSS adjustment, while it's still doing the basic RPM drop, might help your problem. I need to try this since my '76 Spider does the opposite; starts well when cold, but struggles a little to start when warm.
Conedriver, the link doesn't work. Is this approach different from the activate the CSS and see how much rpm drops?
Mike