PBS is demonstrably better than paper line bidding for one simple reason. One man's trash is another man's treasure and PBS gives more people more of what they want than paper line bidding could ever do. It is common sense. Yes, you lose the opportunity for a financial windfall from vacation override, but it is dwarfed by other QOL and financial gains. It's not even close.

Trip trading is a function of manning and open trip seeding with both systems.