Following the Rule of Joseph, we all know the major differneces within our own circle, between a Lakewooder and a Telzer, A Brisker and a Mirer or a Ponevitcher. We must stick to our mesorah, and a Chaim Berliner must not become a Ner Yisroel’nik, and chas v’sholom a Brisker going to Ponevitch.
Those that know, know the differences. Because the Rule of Joseph becomes “nosata d’vorecha l’shiurim”, this is not as “vayt” (pronounced: white with a v) from that, but this is…as decided by King Joseph.
Proof is that all Jews keep their mesorah, hence by doing so over 2000 years, they are all…the same (and any differences are a figment of your imagination).