Flying from the back seat is one of the biggest pluses of the L4 / J3. One of the others is that the whole side of the cockpit can be opened up. the lower half folding down by the fuselage, the upper half latching under the wing. It's like being a bird!
From the back seat most of the aeroplane, and more importantly all of that fabulous view, is in front of you! With a slight xwind from the left, crabbing across the ground to the right, the world unreels before you like a giant IMAX movie, but more so!
No other aeroplane can do this (flexwings are compromised in that respect by having to wear a full face helmet).