My stomping ground is Woodland Caribou and so it would seem hard to form a group. I have found that posting my intentions far in advance makes a big difference. I have been tripping the last few years with paddlers I came to know through a few different canoe forums. Often times paddlers come and go during some of my longer trips. Making it clear to everyone what kind of trip it will be is important. You can't predict how a new group of paddlers will mesh but with enough pre-trip communication and a willingness to address issues as they arise during the trip we have had some fantastic journeys.