If I am following these various casts correct:
MCR-ESB G2 = no sand marks. bristle brush removed prior to creation of mold. No touch up on front of helmet.
MCR- Hero Ears = Using measurements from actual hero ears.
RS G2 = no sand marks or bristle brush on left panel. Repair or alterations on front of helmet. *more info required.
RS Hero Ears = More info needed on their sourcing.
G4/G5 Hero casts = unauthorized recasts.
G5/G6 Altered = unauthorized recasts *Fugly allowed to be sold due to permission*