Thanks Mapperoni ,

Yes I use the Topo France v3 pro already and agree it is excellent !

The reason I ask for the Bayo rasters as well is that they have the Ski touring routes shown like the ign paper maps not just mountain paths as per v3 pro. I want to put this map on the sd card along with v3 pro and be able to toggle between the two whilst out on the hill.

Thanks for your "how too" though much appreciated !