Rabbi Amiel

In honor of Rabbi Shalom
There is now a book sale at the Rabbi Kook Institute.
There is Rabbi Amiel's book Midot for the Study of Halacha A. What does the Rabbi think of the book B. Does the Rabbi think that Rabbi Amiel and the Chazo'a were equal in terms of education, and if not, who is better? C. Maybe the Rabbi knows why the Chazo'a fought him [I saw in one of his files that the writer uploaded in a bad way]
thanks