Its almost like the one in bottom of pic on left, but its squaired off instead of capsule end. So i guess its not OS pipe but its byron.

Another question for you, whole floor inside of my RE is glassed except for area right after the air intakes!, its about 3-4 " width and across from one side wall to another, just wondering if i should glass it or leave it!, i am concerned if i ever had fuel leak inside of the fuselage and floor getting soaked...

Sammy