Remember Orville has little to do with Gibson after about 1902. He sold it by then and was used for "consulting" after that until he basically disappeared after 1908. Much of his influence began to dissapate shortly after he sold the company. He had some interesting ideas, but they were taken in other directions before long. The F style mandolin would progress through several different stages from its inception to the final designs in the early 20's. Even then there was continued alterations till the present day.
Have a Great Day!