This actually brings up something I wanted to make known to the rest of the group, although it is only tangentially related. Even though this is an Adventure Path, I do not tend to run games that are tightly structured around a single story. I am mixing the "Adventure Path" concept with the "Sandbox" concept a bit, such that Varisia is your sandbox. Although there will be a main story which is the adventure path, the world of Golarion is alive with other stories to be told, and you will be allowed to pursue those stories if you like, although they are likely to be relatively short. I am very much a "journey over destination" person. My goal is not to finish the adventure path, but to enjoy telling a great story with my players. If the players choose to pursue the main story over the others, there's nothing wrong with that, but neither is there anything wrong with deviating from the main plot if you enjoy it.