Excerpt from: A Solution to Fundamental Problems Regarding Tekhelet
I will relate as a matter of principle to the question, is it possible to renew the mitzva of Tekhelet or other mitzvas {or to be more loyal to the Hebrew plural of the word, mitzvot or in English commandments} without a tradition.
One should emphasize that even Shvut Yaacov established that it is preferable to use Hadassim without a tradition if there aren’t any others available. Therefore, when we don’t have in our hands a Tekhelet passed down from tradition, there is an obligation even according to Shvut Yaacov to make use of the Tekhelet without a tradition, out of a doubt that perhaps we are indeed fulfilling the mitzva.
The permanent location of this post is at
https://vilnagaon.org/hadassim-and-tekhelet/