Reply To: questions about the yeshivish world

It sounds like the OP is bored and trying to create some hock.
However, just to let everyone know, regarding short chazara hashatz, it’s actually a halacha in Shulchan Aruch and the mishna berura towards the end of chelek 1 (I can’t remember which siman offhand but I’ll try to look it up later). The Shulchan Aruch says b’shaas hadchak the chazzan can start shemone esrei out loud and the congregation can start shemone esrei quietly along with the chazzan, word for word. After Kedusha, everyone continues quietly. The mishna berura writes if it’s not such a shas hadchak, the congregation can start quietly.