Stu, I recently placed a couple of D10s and didn't find any issues. I did leave them on all the time, so didn't explore discrete on and off. (The older RCAs had this.)
I integrated one into a Sonance K2 keypad system and had no issues at all. The other questions you asked will have to be addressed by someone else.
=Tom
There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions.