Based on checking sample photos of surface types I re-evaluated the smoothness scores here.
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access
set surface type, quality, access