we do not, yet another reason we need a complete rewrite. The information I've gleaned over seven plus years where I do reserve 4-5 months per year is a combination of reading the contract and simply emailing contract admin any time I see something that doesn't look right.

If I had to describe my mantra, it is just as important to know the times when you DON'T get paid a little extra as it is to know the times when you DO. By knowing that, there are fewer and fewer surprises, and I know my pay to the 100th of a trip even before all the audits finally get completed. Whenever it's off, I always contact contract admin, even if it's higher. Of course, I don't leave a paper trail when it's higher. Those ones I reserve for phone calls. But even from those I've learned the company very very very rarely makes mistakes in your favor, so you can learn a new way to manipulate your pay and/or catch an error if they short you some obscure little contractual benefit.