Just to follow up on myself, a lot of it depends on who you are flying with, and how things are going. If everyone tends to bunch up in to a tight furball, that's one thing, if they spread out a bit, that's a bit different.

If things are more spread out, the best thing to do is to start out by picking one plane, and try to stay behind them. Pick a plane that's about your speed, planes that are much faster or slower than you are harder to get.