Question for the brain trust...

SLC73NB new hire in seat lock, one year in. Bids NYC330B (presuming it can be held at that seniority). Is that a way to get off the seat lock since 330 is not in SLC or since the 73N is in NYC and obviously able to be held, the seat lock would not be released? My reading of the rules is that the seat lock would remain but others I have spoke to think differently. Wanting to get the brain trust view on it.

Cheers,
Stay Frosty