Pastels like any medium are personal, some like a crisper line, some like a whisper touch.
That said Bob Straus, of The Great American Atworks Company just returned my phone call. He is the maker of The Great American Pastel.
They are sold in the Paris Sennelier store, Couleurs du Quai Voltaire
www.magasinsennelier.com, 3 Quai Voltaire. They are not mentioned on the website but the contact information for the store is. He said that Dominique Sennelier will be there Monday to help ypu.