I need info on how does seniority work on a 3-way. I know on a mutual that both carrier would retain the lowest seniority of the 2. Now, I need to know how the rules apply in a 3-way. Any thoughts would be appreciated. Thanks.

All parties involved get the lower seniority of the 3.

Thanks Mike. I was afraid that was it. I got a hold of my shop steward today and he said the same thing.