I have found that most only have a firm understanding of TAs, usually minutes after they are released. 10 year old contracts are just legalese that can’t be deciphered without a law degree.Contract comparisons are really tough to get right. They cover the big issues like pay and min days off and DC percentage fine, but so many things are really nuanced and there just isn't a way to explain or capture the information in a readable document. Most pilots don't even know the details of what is in their own contracts, let alone understand a different property's book.