After having read some negative observations about the Legacy 611, and having also read about the positive aspects of the earlier TMCC version of the 611, I located and purchased a MINT TMCC 611, (#38095).
I previously owned and operated both the earlier 606 and 611 with TMCC, and I especially liked the improved sounds and smoke unit on the Rail Sounds 5.0 version (611).
Brown should deliver it tomorrow!