Hi Chris.
I like your model. It's a nice example of the DC potential. After all, the main question is how DC can improve our productivity in the daily work. The DC feature is meaningless if there is no improvement, but a waste of time. It's a fancy thing to open/close door, but it should serve a purpose. In my work as a constructor, I always have looked for solution to automate repetetive tasks. I have tried many different CAD solutions, and many are quite good in doing autotasks . But I have never trusted their final output when it comes to details, mainly because other people have set the parameters/conditions. In SU I have full control of the output and details, because I am making the parameters fit my way of thinking/solving problems. How I see it, the DC- feature sets me in a position to save a lot of time with deploying/shaping components, gives me full control over the parameters and at the same time gives me the good "look what I have done" feeling when things work properly. So hopefully there will be a lot of useful DC out there, which can be shared. One last thing. I miss an option to lock access to attributes and even to components, preventing people from altering code. Keep up with the good work Chris!
Dagfinn