Pad is the time between your ending of the clip and the beginning of the clip. If you don't have the pad, it is there to act as well, a pad. It is there so you don't cut off part of your sentence at the beginning or the end. When I film I count to five in my head after I push the record button then start talking. The pad is extremely helpful, I know if I didn't have pad I would need to re-do a lot of things.
My weaknesses in this project were really me not being here for it. I didn't have to do it in that case. Although if I did have to do it iI think my strength would be that I know what I am doing in iMovie.