The approach I use with this device is to tell the client that, well, uh, you see, the reason that they threw this component in is that it lacks some subtle features that make it work well in their hifalutin system. I think that I am able to get this across without sounding like a snob, although I am sure my wife has a different opinion on that....

Then I program it in with the toggles right there on the screen and I tell them that they will need to turn it on and off as there are no discretes. The people who want to put up with this are happy, and the people who do not want to put up with it understand why I will sell them different units for their system. Everybody is happy, and I have not had to take the blame for a product's shortcomings.