I am a rather new driver and have had to work Saturday since we started ground a few weeks back. I am not a fan of it but I will do my time. So to describe our volume on Saturday, we have currently been running four routes. The past two weeks we have cut a route the morning of. Both weeks, they have sent the driver home with the least amount of seniority. By doing so, my dispatch has went from a little over 8 hours to over 11. This past Saturday, I did not get home until after 9. My questions are would I have a grievance because of the drivers on Saturday, I have the most seniority. Also, does the new 9.5 rule not apply to Saturday. Being new, I am not officially part of the Union so I was wondering what my options would be. Thanks in advance.