I tried the Black Chrome heads last night on my touring kit toms: 12, 13 & 16" (Ludwig Keystone oak/maple/oak.)
The sound seems very G2 to me, and indeed they're just .5 mil thicker on the bottom ply (7 mil top, 7.5mil btm, compared to 7 & 7 on the G2.) I didn't find that the sustain was particularly short, the smaller toms had a nice ring to them. In fact, I had to tape up my floor tom because the decay was
too long.
The "R" company used to market their ebony heads as sounding darker, and there may be something to that with the Black Chrome, it's hard to say without a proper a/b comparison. But they sound good, and I'm not in a hurry to change them out (despite loving the G14 batters for several months.)
I think the allure with these is the appearance, and they do look especially great with the Black Abalone finish on my kit! Well, at least from where I sit!
Only possible drawback is that they show fingerprints and stick marks immediately. But I don't worry about that, my gear isn't being used for a photo shoot.
Bermuda