Expertise or Mastery: Which says more to you?

[terry]

I'm putting final touches on the next TI self-coaching aid, a followup to last year's release of the Ultra Efficient Freestyle Complete Self-Coaching Toolkit.Since I began working on it, I've used the working title "Expert" Skills, but as I get closer to release I wonder whether TI *Mastery* Skills might be the better term-of-art. The technique skills include Catch-and-Press, impeccably-tuned 2BK, and Seamless Breathing. I'm inviting input before making this critical decision. What's your most instinctive response to the term Expert vs Mastery? Does one strike you as more inviting, more accessible, more inspiring? And why?

[Grant]

Originally Posted by terry

I'm putting final touches on the next TI self-coaching aid, a followup to last year's release of the Ultra Efficient Freestyle Complete Self-Coaching Toolkit.Since I began working on it, I've used the working title "Expert" Skills, but as I get closer to release I wonder whether TI *Mastery* Skills might be the better term-of-art. The technique skills include Catch-and-Press, impeccably-tuned 2BK, and Seamless Breathing. I'm inviting input before making this critical decision. What's your most instinctive response to the term Expert vs Mastery? Does one strike you as more inviting, more accessible, more inspiring? And why?

I vote for mastery. Expert opens the door to which expert. Mastery also speaks to a journey that is open ended as it does not rule out the possibility of further break throughs.
Also in my experience EXPERTS tend to be overly dogmatic and narrow. I do value expertise presented in a non strident manner.
Thanks again for your contributions to the swimming world.

Of the two, I like "mastery". I don't know the whole context, but I also like "advanced".