In theory yes. But you can bet your butt when they are short you will be conveniently based where ever the heck they want. Sort of like commuting positive space paid.

The two problems I see with dual qual is:

A.) when you dead head you are paid on the cheapest rate. Min days are also usually paid as the lowest rate too. I would imagine on reserve if you do not touch an airplane, such as on Ready Reserve but you are paid for an assignment it will also be paid at the lowest rate too. That in itself is a concession.

B.) You are part of a union. Meaning you must BARGAIN for things. As stupid as it is, it's part of the negotiation process. So if the company wants it, there must be a trade for something to benefit you as part of the union. It stands as leverage when you hold that non-dual qualified in your hands. Once you give that up, you pretty much have nothing left to bargain with.

One thing some may not realize: with dual qual you are paid a base rate, then an overide for any 700/900 flying. But your vacation time, sick time, training is all at base (50 seat) pay. So anyone who is currently flying 700/900 will get a heck of a pay cut when you factor in all of the additional credits, as well as having to fly 50 seat trips.