As the program approaches the junior lineholders, there are fewer trips to work with. At times, because of a vacation, training event, or other leave, it will be impossible to combine those trips and "pre-assigned credits" into a legal line, so that bidder will be forced into reserve. Conversely, a bidder with the same event at a different time during the month may be awarded a line, even though numerous senior bidders were forced to reserve. This creates the concept of "lucky lineholders/unlucky reserves", which directly violates seniority
NO I dont think this violates senority. The system has already looked at every scenario to build the last avaible line at the bottom of the credit window for the month. Then the software try's to use the left over pairings (opentime) to build a schedule that gets to the 65 hour window( vacation low) it's easier to build the schedule because there is already 28 hours of credit to start. If a guy only needs a three day and four day to complete 65 hours why would that violate senority. As far as this system vs that system, it seems either way we have to demand more control on pairing design and the bottom of the credit window. Other wise with any software product, garbage in , garbage out.