You guys are making this SLI thing way too hard. It’s simple.

1. Advocate your position to your reps
2. Unions both advocate their positions to the arbitrator
3. Arbitrator decides
4. Pilot groups accept it and move on as one big, cohesive group.

No matter what your think is fair (obviously based on your own situation), you’re not gonna win over the other side (or the arbitrator, for that matter) on a forum and it only serves to divide the group from the start.