I have built the top flite AT-6 (maybe it's different on the Hollywood Zero) and as I recall, the elevators and rudder do not have trailing edges. You just shape the rips down to meet the die cut main part of the elevator/rudder. I'm doing this from memory so it is a little vague. I recall that the leading edges are in two pieces. The die cut (about 3/32) part goes between them.

I do recall having tappered trailing edge parts for the wing if you are not building flaps.

Sometimes looking ahead in the instructions can help you figure the parts out.

Hopefully this helps you figure stuff out.