As a reader of Slifkin myself, I am well aware of the controversy regarding his works and opinions. But truthfully, I hadn’t the slightest idea what was wrong with what he was saying. Everything he says comes from major sources (gemaras rishonim and achronim). If anyone could provide some examples of what he did wrong (I don’t mean, he’s a heretic because Rav Alyashiv said so; I would like to know WHY he said so) that would be very helpful. Thanks