Yeah, I learned this the hard way too, at first. CrewPay simply said "talk to your union." For the record, I have found our scheduling committee to be awesome when emailing about contract/pay questions.

I now try and avoid carry over trips when bidding conflicts. However, if you are junior (not you Joey), bidding trips with a 1 or 2 day carry over will help your chances with a conflict because senior pilots dont bid the lines that have trips starting on the 2nd or 3rd, they bid ones on the 1st for the conflict. This worked well the first 6 or 7 months and helped me score a conflict every month, even though I was junior. TIFWIW