New guy here. Read the scheduling reference handbook, and am still confused about RLL bid, being "unblockable", and if/how they're related.

It seems like if I am able to bid RLL, I could end up with 0 trips awarded?? Also, if unblockable and awarded reserve - I don't know how- you can drop your reserve schedule??

Thoroughly confused. Has anyone actually used this, and what are the pro's and gotchas?

Thanks