Due to the way that mines works I think it's important to revisit the way that fleet cohesion works..
I think that it is important that certain parts of a fleet jump in system first and that other jump last.
Case in point. If I have a fleet assembled I naturally want my scouts to jump in system first - especially now with the way mine fields can pound a fleet. I also would prefer my carriers to jump in last. I also would like flaks to be groups better in the fleet so that some protect my cap ships and some protect my frigates
I think that fleet should maintain formation or get back into formation prior to jumping into another system. The only time this should be different is in the case of a tactical retreat - in which case you should select the fleet - disband them and then command them to jump out -
The reason I point this out is because during an end game I love a level 9 detroyer when I requested my fleet to jump out and ending up jumping right into an astreroid field the cap ship was the first in and died ASAP. If the scouts had jumped in first the cap shit might have seen the asteroids and would have been able to defend itself.