I have been moving backwards on the EWR 756 since I was hired a bit over a year ago. Still on reserve with a line getting slightly further away every month. I live an hour away from EWR so long call and short call are no big deal for me. Most of the 756 flying is commutable on both sides if you are planning on commuting. The 737 and A320 is not that way. I'm not a fan of our global reserve rules namely RDO days. I love the airplane and the flying! I wish I had a line, but when my 2 year seat lock is up, no way am I bidding over to the 737 or airbus, even to be a line holder. I love the flying and the destinations too much to go back to multiple leg days similar to the brutal regional flying I left a year ago.