Lee T, thank you for the list!
Sounds like she won't do any research anyway. You have to get into the 607/586/7 dates etc.... then you can also bring up the inches in the pyramids, miles to the Ohio convention thing (? sorry, stuff I have forgotten) and so on. She will just say it is new light.
How about the fact that they could worship Jesus up until 1954 (correct date?) new light again.
She isn't 'making sure of all things'. Her answer will probably be the same as my jw, " I don't have to the brothers have already done it for me".