Mezco's isn't 1:6, it's closer to 1:7 also.
I dunno, Doug Bradley's height is listed at 5'11". The Mezco does fit really good with my other 1/6 figures. The hands are a bit small and could definitely be at 1/7 scale. But the rest of the body is 1/6 scale in my book.
I'm still interested in the Threezero but I would switch the HS