Picking up a trade board trip on a day off does not go above guarantee per the contract. Only open time does that. So if you're on reserve and picked it up, I'm afraid you worked for free (unless you were going to break guarantee already). Well, unless you worked out some cash deal or are excited about per diem pay.

That said, "ADGTE" is defined as "Adjusted Guarantee" in Rainmaker, so theory (CBA) might be different than in practice (Rainmaker, and therefore your paycheck)... But if you are showing 75 hours of credit due, then it seems that theory and practice are the same in this case. Sorry bud!