The ear caps look a bit off too. When you look at the ROTJ helmet compared to the AP and the TE2, but the curve of the tubes looks different too, AP/GF vs. TE2
The front looks the same, as you said Rolf, but the sides look different.
The AP looks flatter from the side vs. the TE2 as well..
Good theory there Rolf..
This has gotten my interest as well as the owner of a AP..