Sha’atnez
Question
According to this answer, the Taz believes that a Talmid Chacham has the right to pasken for himself, however there is an exception if something has a previous status of prohibition. Can a Talmid Chacham pasken for himself something is not shaatnez using Chazaka under this logic, or since the previous status of whether it is shaatnez is unknown is that not valid in Halacha?