1 - Not sure about getting a static, but if you have multiple raid-ready classes that will probably help. Either way, T6-8 are all pug-able from PF.

2 - Definitely possible to do BCoB and Primals in DF. You will get really hopeless groups sometimes, but I almost always get groups that down it within 3 tries.

3 - Party Finder is probably 50/50 during peak Aussie hours (since it's also around peak JP hours then). So you'll see something like 30 PF groups up, with 15 being EN. But at the moment, most of those groups are just Ninja FATE-grinding parties :P

Anyway, hope that helps and see you on Tonberry soon