Whilst I'd like to get half of my 208 nights last year, this is fine
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As mentioned in a number of threads, reducing the threshold for Amb in my opinion is only going to delay the required refresh of the status. I'd suggest no one strive to achieve it unless they were going to hit it naturally as the Ambassador currently does not do anything more than middle-man a call to the hotel, and your24 is rarely accepted.
It is best for Marriott to see a reduced number of Amb so they fix it rather than help push more people into it. A simple increase in earning % would provide it with value, currently it has no benefit above Tit (over than prestige).