thanks for taking the time to watch my video. below are my responses
1) the only reason i create an assembly is so that when im in the design phase i can move things around a lot easier and see everything that will be affected. obviously once the design/concept phase is out i take my parts and seperate them. so i just have a part with the merge inheritence in it.
2) I would always dimension off my datums, in this video i was quickly showing how the merge inhertance tool works and how you can make changes. i agree though i was sloppy because i was rushing.