I have 3 weeks vacation. It was 96:15 for line holder with zero days worked or 6 reserve days for 116 hours. Living in base, it might make sense. If you get assigned a 4 day trip on reserve you break even with the lineholder that white slips a 4 day. I chose the 96:15 with zero obligation. Maybe I’ll get a 2 day GS, maybe I won’t but having zero obligation is more important to me than commuting to reserve.