All depends on if you want to make money. Last month I credited a little over 100 hours and I wasn't on call first. I picked up a little Junior Man and it allowed me to break guarantee. Most of that was 7/9 trips too which woulda been slightly better if I wasn't on first yr pay. I'm on call first now just to help make breaking guarantee a little easier and I live in base so it makes my flexibility with scheduling great.