Mike Stafford
I wonder if Jeffrey is referring to the Hunter Osprey as his round bowl gouge? Mike Hunter does refer to the Osprey as a "bowl/spindle gouge".

The Osprey has the Hunter cutter mounted at an angle and can be presented on the bevel just like a gouge and cuts similarly.

If Jeffrey is using either of the two sizes of the Osprey in green timber it might be a challenge to rough out a bowl due to the relatively small size of the cutters. The Ospreys also have a limited reach over the tool rest and over extending that reach would offer opportunities for monumental catches.

The Osprey will cut both end grain and face grain equally well if properly presented.