It looks to me as thought the face plate Gino has shown is from the type SF helmet with a RF ear cap. It is easy to see that there are only RF helmets in ROTJ and it has only been an incorrect theory that the SF existed on screen simply because there had been no knowledge of the helmets been made for TESB.
John Mollo has confirmed that new MK2 Stormtrooper costumes were made for TESB and they have been identifed on screen- FACT.
If I'm not mistaken, Joe has moulded both types of helmets and I would bet that Gino's moulds match Joe's SF moulds.
Regarding hero and stunt types of ROTJ helmets, these are made from the same moulds (RF) with the exception of flat lenses for the stunt and bubbled for the hero. Only the TESB MK2 SF helmets have the foam liner, not any of the ROTJ from what I can gather.
John Mollo has confirmed that new MK2 Stormtrooper costumes were made for TESB and they have been identifed on screen- FACT.
If I'm not mistaken, Joe has moulded both types of helmets and I would bet that Gino's moulds match Joe's SF moulds.
Regarding hero and stunt types of ROTJ helmets, these are made from the same moulds (RF) with the exception of flat lenses for the stunt and bubbled for the hero. Only the TESB MK2 SF helmets have the foam liner, not any of the ROTJ from what I can gather.