I am confused... well slightly..
So depending on the altitude selected to fly you either "have to" maintain in sight of the surface or not.
E.g if flying at 2500 feet outside CAS, I must remain in sight of the surface if I cannot be sure that I will be 1000ft vertically from cloud or 1500m horizontally?
At 3000ft+ I have to follow the more "tighter" regulation of 5km viz, and 1000, 1500 respectively? BUT do not need to be in sight of the surface?
Technically wont this second option put u in IMC?
If you pottering around at 4000 feet with a cloud base at 1000 feet with VFR on top... you are still separated 1000 feet vertically but cannot see the surface?
Have I just confused myself??
Scoobster.