Craig,

I am a dedicated face latherer. I can/have dealt with small and large brushes. The BK8 and Chubby 3 being the largest. I have to say that in my case 'swirlling only' doesn't cut it. When I lather up I need some good back and forth 'paint brush' action to mix the lather. In doing so the brush forms a chisel shape that allows under the nose application. I also like to 'turn' the brush to get into areas of the face. I say turn as you would a knob. I only do this when there is some brush splay.

Yes the lather does cool down faster but after a while you don't even notice. And there is nothing stopping you from resting a face lathered brush in a warm scuttle in between passes.

BTW I just face lathered my newest brush just this morning. It is a dear and does a great job.