REF 5,
I came here from a PBS carrier and I loved it.
The up/downside of PBS is it will give you exactly what your seniority will hold.
It's benefit/detriment is also completely dependent on who builds the days inside each awarded trip. Leave it up to planning/marketing and it will be horrible. Set limits in the contract and let the union review each month before posting and it's a thing of beauty.
set min days off >= 3
set report time >= 11am
etc, etc...