Accessing Vertex Positions of animated skeletal mesh

FYI - If All you want is to create a runtime static mesh - then there is the new PoseSnapshot capabilities in 4.15.

From Unreal Engine 4.15 Released! - Unreal Engine

NEW: POSE SNAPSHOTTING
We’ve added the ability to capture a runtime Skeletal Mesh pose in Blueprints for use in the Anim Blueprint!