Not in my case. I qualified for 1MM a few months ago, so I’ll end the year with about 1,000,050 BIS. I’m guessing I’ll be at around 100,100 BIS by the time my 1K expires. So, the time would be ideal to split my flying, not worry about top tier on any airline, buy more discounted front cabin fares, and have a better array of options for when I buy Y.