I will usually just PM the party leader, let them know my experience, and to look me up if they have trouble filling the position. Sometimes you hear back, sometimes you don't. I do notice a lot of weak links sneaking into those parties though. I kind of missed the VEX boat on Jenova, most of the capible pmayers cleared and got their weapons quickly. Now it seems more difficult to find those who are capible. You always seem to get a coupme cocky ones that are the downfall of the party.