We don't go to arbitration when negotiating a new contract. Mediation yes but no arbitration. I usually spend 15-30 min online bidding depending on if it is a vacation month. I am not very picky though, we do have a nice line sorting system that will be bid based on your line pref scores. Either way it needs to be an improvement for both groups. No 89 min bid credit or line 10 having min days off.