I've done it both ways, many times. If you are fully honest and engaged during the call and discuss every answer you circled, then that's a good approximation of your own solo BR.
... educational campaign included information on ways to make vegetables more appetizing ... if we included information on ways to make vegetables more appetizing ...
I use the analytics on here, but I've seen some people on TLS mention alternative methods, including other sites as well as excel sheets. Try a search on there, I'm sure you'll find lots of ways people go about logging their errors.
I am a few chapters into the LG Bible and so far it's helpful. I went in not knowing how to diagram games at all and now I know a couple of ways to do it. I took a diagnostic PT but did not do so well on the LG questions so I still have a long way to go.