as for BCA, same BS as last chinese new year, chinese captains come for a working holiday with families to sanya and the foreigners end up in every base than the one that is their home base, sanya is now ridiculously overcrewed so expect a lot of positioning to hangzhou, haikou, chengdu, xian etc unless you are beijing based in which case you may make extra money positioning to sanya every week, sanya pilots are spending 3/4 days in shenyang at the moment. As for 330 transfer from 320, you will be accepted asap after getting to line but the max age is 50, you have move to hangzhou or beijing, a mix of short and long haul on 330, if you want 330 flying, join an airline thats been doing it for a while and the pay is better and in the same base!!! HNA!, BCA has expanded rapidly but the infrastructure is still the same. If you want to change work pattern after starting, unless its to change to 6/2.... forget it, they will not let you!! If you don't take your leave, theres a good chance you won't get it back, i had to reapply 4 times to get just some leave recently, they are just happy to pay the days back to you, i will see this contract out and then, who knows but most likely, it won't be here.