I wish it didn't force me into using "pseudo-octal" addressing in "single address" accessory mode! If I have for example 15 uncouplers, they must be split into two groups of 8. So if my TMCC address is 1, it can contain 8 uncouplers 1 through 8. Uncoupler "9" must be TMCC address 2 uncoupler 1. A nuisance when adding to an existing layout with uncouplers labelled 1 through 15. But, "single-address" mode is designed for uncouplers and offers only momentary operation to protect them. That part I like!
Now, if I go to "eight address" mode, I can number them consecutively, a unique TMCC address for each uncoupler, but that forces me into accepting the latching operation available on AUX2. That is what I am going to do, but it is a shame that the latching can't be disabled in this mode.
Just my $.02 worth. No refunds.