Blaster, who ever said that Black-T "flakes off" is 100% dead wrong!
Walter has told me of a test that he has conducted on his finish... He finished an old shotgun barrel in Black-T, put it in a vise, inserted a fulcrum into the barrel, and proceeded to bend the barrel every which way until it looked more like a pretzel than a gun barrel.
Guess what... the finished never cracked or flaked!!!
As for Black-T not wearing well, any gun finish will wear over time and with use. Black-T is no exception.
But... if & when Birdsong prefects his "Ceramic-T", it will usher in a whole new era of extremely durable firearms finishes!
Walter Birdsong's contact info is in the link that I posted. Anyone interested in Black-T should give him a call. He will be more than happy to tell you about his finishes.