Crack in housing?

[massi.rav]

I am not sure if this is true for all the blacks, but plastics might have been assembled in a different way. 

Completely agree with this.  I think the white plastic seems to be thicker/more robust than the black based on what I recall when cross-shopping the Premiers.  Would you agree?  Maybe the Reactor white plastic is altogether different.

Regardless, I'll keep this forum in the loop as this gets resolved.

Possible.

I have never inspected the blacks - that I do not own as well - so I cannot tell about the feeling. Anyway I work in the plastics industry and I can tell that when you change the color (and the blacks are also matt), you might need to change materials or the composition of the materials. So, processing and assembling phases might also change due to the different materials used (whites vs blacks).