Vacation won't do anything to increase your paycheck over whatever BLG you can hold. The only thing you can do is increase your number of days off. Since Mar is a 5 week month, you owe the company 19 days of either vacation or reserve. The most you will be paid is RLG (barring carryover.) At the very least, you will get 7 days of vacation and have to work 12 days of reserve. Since a Res day on the Boeing is going for 4:32 of late, that 7 days will cost you 33:44 out of your vacation bank. If you want more days off, you can expand your vacation to 10 days. You will only serve 9 days of reserve, and your bank will get charged 45:20. The only way to increase your paycheck is the tried and true, pick up makeup trips or bid Feb lines with Mar carryover.