Jennifer Igartua, thanks for your follow up as well. What I'm doing right now is having anyone with a D4 get placed in a "Junk Leads" Contact Group, so I can measure how many D4 and "google" as a company fake entries we get, and this occurs right after the "Start" steps. In theory, Eloqua should maintain and update the Lead Score for these people and once they're warmed up to D3 or C4 levels, they should pass through.... "should".
I'm going to keep a close eye on this for now and hope nothing breaks. So far it has successfully only kicked the right folks into the Contact Group.