Hi Jay.... when I was doing the very same thing with my CW filter settings, I found it was best to go to the W1AW Operating Schedule and pick a time that was good for you and this will give you about 1/2 hour or so of very good CW that you can go through all the filter settings and pick the value that suits you the best..
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Good clean CW with very little fade sure makes your setting selections a little easier...