First off I would like to know if anyone has been successful in having pre-colonization systems generate trade missions to a player colony. If so do they tend to be to one station in your system or many? Do they generate missions for every planetary base with a landing pad? The reason I would like to know this is I am wondering if I need to plan to have as few landing pads as possible to facilitate trade to one station as much as possible to hopefully create some profitable trade links.