Top: 276 new point source detections (overplotted on the Planck dust map) indicated by large discs for illustration, the actual holes are much smaller. The circles indicate sources indentified as sz clusters from the Planck sz catalogue, the full discs indicate sources which have not been identified in other catalogues but which seem to trace galactic dust emission. Bottom: new extended U66 mask (yellow) with the U73 mask (blue).