Proud Hungarian said: “Reb Chaim Kanievsky – who knows very well what Rav Elyashiv said – told a big Askan from Monsey last Pesach that if someone looks into the matter thoroughly and is convinced that this is really Techeiles then it is not a question of whether or not he should wear it, but he MUST wear Techeiles.”
That contradicts what I heard from Rav Nissan Kaplan about a bachur from the Mir who was very involved in promoting techeiles, and went to Rav Chaim Kanievsky to ask him about it. Rav Kanievsky responded, “Chazal shteit, ‘nignaz.'” The bachur asked, “Just in case……” Rav Kanievsky said back, “Ke’ilu lovesh dam chamor.”
I’m not saying you’re wrong; I just would absolutely love to see that video.