I'm not sure they need glass experience because they are hiring into the 10 as well as the 75/6. I would think long haul and/or heavy experience would be more valuable.
I would guess that they are flexible on the hours, but you may be right seat for longer that way.
I have no idea about hiring numbers, but they did say that there has been a lot of attrition and I believe that means they will be hiring several classes.
Also, I'm pretty sure that a recommendation is REALLY helpful.