Well,it's possible to have grey on grey chim and not see a difference in coat.

Ah I see. He was a grey w/ brown chimera

Nope he doesn't show grey chim anymore (through the Lens atleast).

Nevermind, just tested it out. The dapples fade away, so yep you won't see grey chimera on this shade of grey :p

I hope they are still chimeras, I will be super upset if not

Whitewolf, I did the lens of time and he looks gorgeous. Don't know if link will work but here is what he will look like horseeden.com/veterinary.php