The biggest problem with the new system is that it enables BA to force overtime on a pilot even though they are already working above CAP. It basically prevents anyone from daring to try to have a bit of time off in one go. Yes you might be lucky and get away with it, but the likelihood is that you will not. Blind lines on long haul with the rules of a minimum of two days off between trips are basically gone, because they just build the roster according to that rule and then adjust it as they see fit once that rule no longer applies at the roster assign phase. Frankly, I don't even know why they bother to produce the final roster for blind line holders. Why tell someone what they could have had under the old system, only to take it away from them a few days later? I was force drafted a fair few times (met at aircraft for work the following day), and I've been roster assigned a fair few times too. I far preferred the old system with a little fear factor after the odd flight, rather than the fear factor every time you make an alteration to a bid; trying to second guess the best strategy to get that one day off you need. Plus this new system allows BA to employ considerably fewer pilots. It really must be a dream come true for them. How else do you think they can afford clash and protect and more!
To add insult to injury, it is now the case that if you volunteer to pick up overtime from EOT, you get paid more than twice what someone who has been forced to work will be paid (clash and protect having become the new norm).
If the majority are happy with this new system then I'd be happier, but I don't believe it to be the case.