I’ve had this building kit for sometime and for a long time it has been in a box, constructed and with a black undercoat. I gave the walls a basecoat of Citadel Base: Zandri Dust.
I wasn’t too impressed with the coverage over the black undercoat, I certainly had better results in the past with the old Foundation Paint range when painting over black.
These days though I am much more likely to use a white undercoat than a black one, and coverage is one of those reasons.