That was true for the original tutorials, but not Camera To Print and Screen which was shot using LR4 and includes the resolution recommendations you mentioned.
The reason I mentioned this is that I had just watched "Camera to Print and Screen" C2PS_26_IP-ColourWorkflowLR.mov & C2PS_27_IP-CRtoPrintWorkflow.mov
As I remember, you were using ACR and were commenting in 26 that Michael used 'brightness' in the correct sequence. In 27 you sharpened for print with PKS "480+" (or something like that) and then went to print with that resolution.
If I remembered improperly or am viewing a backdated copy, I apologize. (BTW...date modified (loaded) on my files is 11/09/2011)
In your book, Digital Negative, (which is wonderful), you do use LR4. Cannot wait for Diogital Print.