The contract says I'll get paid 75 hours or the value of my remaining trips plus vacation credit, (whichever is greater). The part I couldn't find is what the rules are for trading during the initial and secondary line improvement windows during a vacation month. I remember something about "never trading during initial line improvement". I started off with a 94 hour line, dropped two 4-day trips, and now have 70 hours of credit when I add up my remaining trips and vacation days. So if I do nothing, I will get paid 75 hours (getting 5 hours "free"). The way I believe it works is if I trade a 20 hr 4 day for an 18 hr 4 day, I will lose 2 hours of guarantee and get paid 73? Also if I trade my 20 hr 4 day for a 22 hr 4 day, I'll be working those extra 2 hours for free? Would anything bad happen if I traded a 20 hr 4 day for a different 20 hr 4 day, or would I still retain all my monthly guarantee protections and keep my 75 hours of pay? Also, how do these rules change once I'm in the secondary window? Thanks!