Junior AA CA right around late '98 hire.
Yes, we have pay protection for sequence cancellation. However you have to go into what's called "recovery obligation" in which crew skeds may assign you a trip during the footprint of the cancelled trip, which you must accept in order to get the pay protection. Could be a simple turn vs your cancelled 4 day....whatever, you still get the full pay. Sometimes you get a trip, sometimes you don't. It's not perfect but it's an improvement.