DY on: And who started the Litvish Yeshiva minhag of a “hoicha kedusha” at mincha to save time of Chazoras HaShatz so we can get back to learn and not “waste time” on a proper mincha?! DT – Very possibly Chazal.
Which Chazal said that is the minhag of klal yisroel to abridge mincha (and if so, mima mafshoch) why do all shuls (outside of Litvish Yeshos) NOT follow this Chazal and have a proper chazoras haShatz?!