I have flown with several reserve FO's in the past few weeks, they have all made the comment they are flying 70+ hours a month. Most of them HAVE been extended into days off. A few were even JA'd upon checking out from an assignment.

As far as using the displacement to get the ca's = fo's, that is complete crap. You will always need more Ca's than FO's if only to cover the fact that Ca's typically get more vacation time. This displacement was strictly driven by the almighty dollar. Some idiot, d-bag beancounter thought they could save money. They are going to trip over a $10 bill to save a nickel. Just watch our block hours increase in the next few months and the company start paying fines again because we are short crews.