Just as an FYI to any others reading, though most SP4 owners want, like the new dock, my SP4 has been running on my SP3 port replicator with the spacer flawlessly for almost a year now and I've ran multiple external monitors - an AOC Q2963PM, Asus PB287Q, LG27UD68-W, LG 34UM94-P, Dell U3415-W -...