All classes held in Portland, Oregon unless otherwise noted.
Oct 13-14, 2018 Nov 7-8, 2018 Dec 1-2, 2018 Jan 23-24, 2019 Feb 23-24, 2019 Mar 9-10, 2019
Oct 15-17, 2018 Jan 25-27, 2019 Mar 11-13, 2019
Oct 19-21, 2018 Jan 29-31, 2019