Unless something has changed, if you get a trip via AGGRESSIVE PICKUP as a reserve, then the portion of the trip on your day off will be paid above guarantee. If you pick up a trip out of straight open time, then it just counts towards your 75 hour reserve minimum. This is why you have to pay attention to which menu you're clicking on in FLiCA.

Someone asked if you can UTO then pick up a trip on a day off via open time to get the hours back, and honestly, I don't know if that wouldn't work or not. For example, you UTO a reserve day and have your reserve guarantee reduced by 4:12 (the credit for one reserve day). There's a day turn in open time on a day off the next week that credits 5:12. It could be you pick it up and credit 76 hours for the month. It could also mean you're still at 70:48 for the month unless you've already flown 70:48. If you've got over 100 hours in the PTO bank, the answer is easy. UTO and sell back the PTO at premium.