I think vacation is one of the larger drivers, but I have no idea what that translates to into actual numbers. Maybe just a few hundred, maybe more. A lot would be in the language of section 23 if the rotation construction limitations drive more credit into trips and thus more flying needs to be spread among more pilots. In the end it's not like the AIP is going to drive 2000+ additional hires but I'm sure ALPA has the numbers and hopefully that will be a part of the info that comes out when this is turned into a TA. Of course gains could also be offset if staffing needs are reduced by pay banding or other provisions.