Originally Posted by Fat Onetwobanana
Say, for the sake of argument, we made CAP1 Flying/Poison. Your opponent switches in Terrakion. You know he's not about to X-Scissor or Close Combat you. This leaves two options - Stone Edge, or Rock Polish. Your prediction just got a whole lot easier.
You are now free to switch in something that resists Rock - say, Gliscor
First of all, Gliscor does not resist rock. Second of all, this is invalid since Gliscor is basically always a safe switch into Terakion (although SD might pose a problem if Gliscor is at low health). Third, CAP 1 being dependent on Gliscor is silly.
My reasoning against Flying/Fighting is simple. I don't like that it is weak to itself. That encourages running more offensive spreads, which is not what we are going for.