I have 5 url's at Godaddy Domain Hosting permanent reirected to my main url. Should I register the redirected url's to the search engines?

Also, I own about 35 url's at Godaddy all pertaining to the same subject matter as my main url. I thought of redirecting all of them, but the Godaddy rep said one should never redirect over 5 or 6 url's to a main url. Any thoughts on that?

thanks,
Ron