I would say otherwise if they are professionals. I have flown with many of the XJ furloughs over at 9E and have not run across a single one that brings any type of negative attitude. Even when discussing Sli.... If both guys are professional, they will get along just fine. If 1 of the two has a bad attitude it will be "one of those trips". If both are unprofessional, both will most likely be getting a call from Pro Standards or possibly a carpet dance (if it is a serious issue).