Steve:
Good practice, and/or good design, fall into the category of 'who is paying'.
Yes, in a 'custom' SFD, the 'upsell' usually works. However, in the 'spec' SFD the builder usually goes 'Code'.(period)
The SFDs here are mostly on the custom side with a lot of toys. Car chargers are becoming more popular, with Tesla leading the way.
