Panning the LOGIC Pan (as in don’t use it)
This may be old news for many, but it was a bit of a revelation for me so let me share it.
Logic’s channel strip pan is a bit of a funny beast. Instead of actually panning the signal from one side to the other, it lowers the volume of one side to create the impression of panning. The problem with this is that you start to lose the imaging information of the channel you are panning away from. So at full pan left for instance, you lose any info from the right side. For example, if you are working with an orchestral recording of a string section of 14 players, the players may be distributed 5R, 1C, 8L. So with the default LOGIC panner at full pan left, you are actually only hearing part of the one player in the center (1C), and the eight players on the left (8L). All of the players on the right (5R) have disappeared. Your 14 piece string section is now reduced to 8.5 instruments in effect.
This obviously isn’t what happens in real life. If those 14 players were to get up and move to the left side of the stage, you would still hear 14 string players. And even though they are all sitting on the left, it is likely not the EXTREME left and you’d still have some right channel info.
In other DAWs, the default behavior is to increasingly fold the channel information from one side into the other as you pan from one side to the other. That way you still have both channels of information, but the pan setting better represents the positioning in space. (I imagine at extremes these two signals sum to a true mono so if you have phase problems, you’ll find out pretty quickly.)
Fortunately in LOGIC there is an answer. It’s a plug-in called the “Direction Mixer”. You can use this plugin to decode middle and side audio recordings or to spread the stereo base of a left/right recording and set the pan position.

I am about 3/4 of the way through Logic 9 Explained by