I am trying to decide which to buy. My question is this, looks wise is there a major difference between cf2 and cf3? I know cf3 offers more difussion. But i am kind of leery of having to change the opcilation speed(or whatever you call it) on the adapter. Since i am going to be switching constantly from the stock cf1 and whatever i end up getting. Do you need to change the oscilation speed on the adapter if u are using a CF2?