Nothing that gets dropped for any reason, including for touching vacation, is pay protected and we have to build our schedule back up to the minimum (usually 75, higher in flex months) by the end of our adjustment period lest the crew planners do it for you on their terms. Vacation can very easily be more of an annoyance than anything else since anything it forces to drop has to be made up elsewhere in the month and there may not be a convenient "elsewhere."