The Rebbe suggests to Rabbi Zevin that he reference the sources and their reliability.

Regarding the debate over the Megilot HaGenuzot, the Rebbe mentions that he has not yet had the opportunity to study the entire issue. However, at first glance, it appears that the scribe may have been unaware of the rules of malei and chaser. Perhaps this is why the scrolls were hidden https://www.torahrecordings.com/rebbe/igroskodesh/011/007/3405