Hello Gary,
If you look at all the paneling real good you will find some stuff closer to 1\/8" thick, that is what you want to use, it bends real nice for you. The trailing edges of my airplanes are very thick, because my control surfaces are huge for 3D and a thick T/E remains loaded in flight at neutral much better then a sharp trailing edge. I cap them with 1/16" medium density balsa wood sheeting and Gorilla glue.
Bob