Best kept secret in the company.
Instant seniority. Productive trips with nice layovers. Great airplane. And no, you won't see the -400 unless one is coming out of maintenance and you're taking it back to EWR. You'll occasionally fly the 763 domestically.
It sounds like the jet dovetails nicely with your family concerns. Come get the type rating while you still can. You'll be happy you flew it.
I could be wrong, but I never once saw FSB on the 756.