Best factor against it, trying to co-ordinate a force to arrive at the same time over those kind of distances. Most realms struggle to land their force on a three turn move already.
Actually the most fun part is giving SMA-appropriate orders while coordinating a 8-10 turn move. Nevermind that whoever you're attacking can see you from about 5 turns out -.- You KNOW there is no surprise element going to help you out.
