Still named an unchanged side for the fifth successive match but watched a below-par Daggers performance as they were comfortably brushed aside by their neighbours.
The heavy defeat does not necessarily mean Still will look to shake things up but the likes of Brian Woodall, Jake Caprice and Josh Scott have done themselves no harm having stepped off the bench against the Shrimpers.
The likes of Kevin Maher, Billy Bingham and Gavin Hoyte will also be pushing for recalls amid a full-strength Daggers squad.
Mid-table Dagenham, who have won three and lost three of their last six, face a tough task against a second-placed Vale side who share the joint-best away record in the division with leaders Gillingham.
- Sports & Recreation