B roll shots are for inserting into your main(A) video. These shots( in your case) will give the viewer a better look at, or understanding of a particular item or subject. For example; if the talent is showing how to tie a rope haulter, you will have a framed shot of him/her at full body with B shots of the close up detail of the rope and hands. This can be used as an insert during the initial instruction, or show the process twice. If you are doing a two camera shoot, it’s easier to do the detail shots at the same time.
