I thought I had the short one. LOL
I tried to compare to pictures and came to that conclusion.
I can shorten my constructed replacement it if that is indeed the case.
In the movie they are both the same length, but one would retract faster then the other, so maybe that is what they were going for. It's more interesting visually too I guess.
I had everything on hand to make the new antenna.
Acrylic rod just the right diamater, used bare metal foil tape to roll around the end to make the little nubby and some old model master metalizer paint that was a close enough match.