Vesom Sechel: Tefillin of Rashi and Rabbenu Tam

Vesom Sechel: Tefillin of Rashi and Rabbenu Tam
Reading this post reminded me of a story that I read in Seder HaDoros (Year 4930) in which there is a מח' between ר"ת and משה רבינו up in the שמים. They argue about Tefillin as well, and come out that we pasken like Rabbeinu Tam. Iteresting story, the angel מ"ט also plays a role in this story, as does Rabbeinu Eliyahu from Paris, the Tosafist.