For a very long time I could not get the SS Coils in the Crown II to work. I finally got the TCR right. The production and flavor is 5x NI200! This is like a RBA for real. Have to let it sit to prime or rotten taste at first. Other than that, no looking back now! It is odd I was sure they were very sub par and now that I figured it out it is off the chain., Does not get nearly as hot either. I have the latest coils with the Yellow band. Let's see how long they last now. Otherwise not looking back. Glad to be rid of NI200 due to health concerns getting it red hot.