Actually, if you're trying to max out your pay in a four-week bid month, and you have say, a 14-day vacation, bidding VTO works pretty good. For every vacation day you have during a month you were awarded a VTO line, you will recieve 6 hours pay. So, a 14-day vacation equates to 88 hours of pay, and the entire month off for a 4-week bid month. Not bad.