Balance is best. The brain has only so much processing power so in order to get stronger at input processing, output processing has to suffer, or vice versa - robbing Peter to pay Paul so to speak. Subtypes are people of imbalance and have less overall processing efficiency. I certainly wouldn't brag about subtype strengths because there has to be a big hole somewhere. I'm a very Ti-subtype, which is a strength for a very narrow range of activities.

a.k.a. I/O