Not sure...but it seems strange to mold a permanent visor to an existing (Rock Raider) helmet style rather than just creating a new, unique helmet (or just molding the existing design in silver and leaving it at that). Time will tell.
No...it's as easy as slicing the skin between your fingers with an Exacto blade...but one scenario provokes the same question as the other: why would you want to do that? In any case, it seems what you got and what the new PM set has are two different visors.
It's interesting to see how similar to SPIII the next wave of PM's torsos are.
There are a bunch of other up-close shots of other lines (Atlantis, SPIII, PM, etc.) in his stream as well. I'm digging the new "chunky" SPIII and PM helmet molds, for some long-overdue variety in the closed-helmet department.