I have an SEO guy that is confusing me. He mentioned that in Google Webmaster Tools I should verify the www version of a site along with the non www (the non www is already verified). So I informed him there's no need because I use .htaccess to 301 redirect all www urls to the non-www url for canonical reasons (like Matt Cutts recommends). He tells me that I still should verify both versions.
I see verifying as me telling Google I want them to index things on a certain domain/subdomain...and the whole point of the canonical is that I DON'T want them indexing www subdomain urls! Not to mention, if every request to the www subdomain is redirected, is it even possible to verify it?
Should I try to do this or should I not verify the www?