The CE or PC version is really cool, it is symmetrical, made of ABS and no stand (but you could use a towel holder or custom made stand). The helmet is excellent for that money. I have both the Limited Edition (LE) and the Collector's Edition (CE) you can see below
Differences in Master Replicas/eFX Stormtrooper 1:1 helmet:
Limited Edition (eFX is exactly like this one but just 500 made):
https://www.youtube.com/watch?v=hrSdBMd6X3k
Suggest Retail Price: $399
Version: "Hero"
Edition Size: 2,500 (only 1,048 made by MR and 500 by eFX)
Geometry: Asymmetrical (screen accurate)
Lens: Bubble Lens (Green and Grey)*
Material: Hand Laid Fiberglass
Interior: Fully lined and padded
Plaque: Yes
Stand: Yes
Collector's Edition Helmet (eFX Precision Cast):
https://www.youtube.com/watch?v=3LtsM1fDzuw
Suggested Retail Price: $119
Version: "Stunt"
Edition Size: Open Edition
Geometry: Symmetrical (idealized)
Lends: Flat-Green
Material: Injection molded ABS
Interior: PU Foam Pad on Crown
Plaque: No
Stand: No