I wish I would have something to say about Rav Kinyevsky. The books of his father --the set of Kehilat Yaakov were around when I was in Shar Yashuv, but I did not get a chance to learn them while I was there,-though I am sure that all the books of the great Litvak sages are important. Mainly that would be the Kehilat Yaakov, the Chidushei HaRambam of Rav Chaim of Brisk, and the books of his disciples. The thing was that while I was in yeshiva, I was struggling just to get through Shas with Rashi and Tosphot and as much Maharsha as I could manage. The later achronim were just too much for meat that point. And later I did not have the merit to be able to sit and learn as I should have. חבל על דאבדין 

--So if I could I would try to make up for my lack of education by getting through the Avi Ezri of Rav Shach. the Chidushei HaRambam of Rav Chaim of Brisk, the Kehilat Yaakov of  the father of Rav Kinyevsky.  Part of the problem for me is that I tend to need a sort of Litvak Yeshiva to be able to spend the time on learning. There is a sort of energy I would get when I was in Shar Yashuv and the Mir. Without that kind of environment, it is hard to learn. Maybe that is no excuse, but that is just the way things are for me. And maybe there is a lesson to be learned here about how important it is to have a Litvak Study Hall [Beit Midrash] where one can learn. I have not had anything like that for many years.