Today I was working in a group of four statics (all different types - what's more all Pe subtypes: INTj-Ne, ISTj-Se, ESFp-Se, and ESTp-Se), and I noticed a few things.
First: because they have the same conscious elements, communication between Statics is practically instant. (I assume it would be the same for Dynamics.) You hear a lot about intraquadra communication being easiest, but IME that is not the case. What quadra types share are unspoken values, so they can predict each others' beliefs and ideological reactions. However, when it comes to working together, Duals and Activators obviously are not ideally suited.
Second: Se ego types are just as idealistic as Ne ego types. They both want to enforce their specific vision (derived from Ji in the ego) on the world. However, Ne types do it in the world of ideas, whereas Se types do it in the world of concrete objects. What they both lack is a moment-to-moment handle on their environment and its development - this is what Dynamics give them, in the form of Pi.