@You-don’t-say:
Firstly, I’d ask you to please stop talking so disrespectfully. If your agenda is truly ביקוש האמת and harbatzas haTorah veHalachah, you would not be taking such an aggressive tone about anything that stands in the way of your agenda. You are talking about techeiles like others discuss Zionism. I don’t know what your agenda is, but please pretend it is ביקוש האמת for the remainder of your stay in the CR.
Secondly, we don’t need anybody to tell us that R’ Chaim’s sefer wasn’t intended as a practical halachic guide. However, saying that is a far cry from arguing with a practical halachic defence he said. You can accuse me of making it up if you like (it isn’t in Sefer), but you have absolutely no right to call it “extraciricular”. The “vort” I quoted is brought להלכה in Teshuvos veHanhagos from R’ Moshe Shternbuch, Siman 58 – not from R’ Chaim, but from the Maharil Diskin. (It’s only a couple of teshuvos after he denounces techeiles)
Thirdly – the list of Manhigei Hador on the flip side (anti-Murex) is staggering. R’ Elyashiv zt”l, R’ Chaim Kanievsky shlit”a, R’ Moshe Shternbuch shlit”a, R’ Shloime Miller shlit”a and R’ Osher Weiss shlit”a all came out against the Murex for various reasons. You cannot in your right mind abuse those who follow the Manhigei Hador. You can argue, and if your research leads you to argue with them, then you can follow the Rabbanim who support Techeiles.
Last point – I’d love you to answer two questions. The first to us, and the second to yourself (I’d love to hear your answer, but I don’t feel the need to put you on the spot and demand a response):
1) Why do you not say Krias Shema in as many pronunciations as you can? Surely there is a possibility you have not been mekayem the Mitzvah properly?
2) [Please answer this question honestly – at least to yourself] Are you machmir in all mitzvos as much as your expect the entire world to in Tzitzis? And if you discover that you have a particular focus – perhaps disproportionate, even – in this inyan, care to think for a moment: Why?