If you read the specific part in the ANO it only stipulates 3000m Visibility in sight of the surface......it doesnt specify how much surface to be in sight of. Surely 1 okta of ground is 'in sight of the surface'?
As far as ATCO's are concerned its (above 3000') 1500m horizontal and 1000' vertical from cloud and 5km visibility.
Personally speaking my experience as an ATCO has proven that whether a pilot is an 'IFR or VFR' pilot has no bearing whatsoever on their individual ability.
A RIS will be provided regardless of your flight rules/conditions if requested and traffic levels permit.
Hmmmm........things get more confusing!!!!