Reply To: Hats and Jackets by Davening

R’ Kanievsky probably has this kabalah from the Steipler or the Chazon Ish (I don’t remeber which one). The same question was asked to them and they gave the same answer BUT it was also noted that they said that this halacha pertains to someone who ALWAYS wears a hat and a jacket by davening. In such a case it is better to daven beyichidus. For one who does not always wear a hat and a jacket by davening it is better to daven with a minyan without a hat and jacket than to daven beyichidus with a hat and jacket