On the Hexhead, the orientation of the fuel pump flanged, caused water to pool around the fuel pump controller. This resulted in corrosion & electrical problems.

On the Camhead, the fuel pump flange has been rotated, in order that the fuel pump controller & electrical connections are upper most.
Yes, water does still collect in the flange but not where it can cause any problems.

For some reason, the fuel pump controller has changed colour from silver to black.