Joseph, why don’t you contact R’ Osher Weiss, and ask him how he can endorse it? That would give you a far greater insight than posting here. You can also contact R’ Zalman Nechemia Goldberg, a member of the Beis Din of Yerushalayim (as well as a son-in-law of R’ Shlomo Zalman Auerbach zt”l).
