I am not really sure where you read this but I cannot find a reference to it. I am pretty sure you cannot be assigned anything before 10 am on your first day of a reserve work block regardless of release time from the previous block. Also, they usually won't call to release you. Your release time should be on your master schedule. After that time has come and gone you are free. I think you are referencing the old contract. It did technically allow a 6 am show. That is why everyone stressed that you DO NOT answer your phone on your day off, there by forcing the 10 hour requirement starting at midnight on the 1st day. The new contract is pretty cut and dry. 10 am unless waived by the pilot.