Let's you asked your old rabbi a question and he answered you, but not let's say you lost contact with him or some other story. Do you still have to follow this pesak or can you change?
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
If you change rabbi/shita/chasidis - you take on the laws of the new.
EG - ashkenaz woman marries sfardi - eats rice on pesach Askenaz turns sefardi - change your tefilin If your new rebbi only holds R Tam lechumra, you should not hold it lekula in his town.
If you learn a sugya/halacha or anything wrong, or differntly later - you change. Judaism is a living organism