Rabbi Meir Hellman published Levush HaAron, a thin kuntreiss on Techeiles, addressing many of the questions and providing quick, solid answers to each of them. In 2013 R’ Yisroel Belsky ZT”L wrote a haskama to it. At the time no such book existed for this sugya.
Rabbi Hellman also gave a presentation at an Agudas Yisroel Yarchei Kallah in 2016.
The above said, Rabbi Hellman has stated that he doesn’t want to be the “Techeiles police,” in that if one wants to wear it, he wears it, and if not, then not.
