Short answer, this is my own house I'm currently designing. Yes, I will get truss drawings from the manufacturer, but to keep the model as close to "real" as possible, I will still want to model the truss per their design, but now I know I will need to manipulate the truss after the fact. Was just making sure that I wasn't missing something that let me keep it accurate OOTB.
Let me know if you want the long answer lol.