Savant trait - class skills

[kageseishin]

I have 4 Perform skills, Act, Dance, Oratory, and Percussion. Does this trait make all Perform skills class skills or just the one I choose for the +2 bonus?

Social Trait - Savant(Kitharodian Academy): From a very young age, the ability to master performance types has come quite naturally to you. Choose a performance type. You gain a +2 trait bonus on all Perform checks made using that performance type. Perform is always a class skill for you.

[blackbloodtroll]

Perform is either a class skill, or it isn't. There is no splitting it up. This trait gives you all perform, but a bonus to only one.

[kageseishin]

Well that's pretty cool then, thanks. =)