Wolperts on Competitive Bidding: Dealing with Overcalls August 21, 2020 Video Course You cannot view this unit as you're not logged in yet. To access this content, you must purchase Wolpert's Competitive Bidding: Dealing with Overcalls (August 21 2020).Post navigationPrevious post: Conventional Wisdom Notes: MeckwellNext post: Wolperts on Competitive Bidding Notes: Dealing with Overcalls