Sounds like you've got a bad case of SJS. Almost everyone is telling you to not bid the 756 - and we're telling you that based on the information you've posted. There are many reasons why we're telling you to bid 737 or 320, not the least of which is that the 756 fleet is shrinking.

It might work out for you, but if you're sitting on the 737 or 320, you can bid up to the 756 any time you want. If you're unhappy with the 756, you're seat locked for 2 years. That alone is worth not bidding the 756 as a newhire.