I have no idea about the answer to your question. However depending on your routes, you may be surprised how much you jump up and what difference it makes.
As an ATL based platinum flying mostly short flights within the southeast, I have been upgraded to F a grand total of three times in the past two years. With the changes to MQD-based, I’ll easily make diamond this year and I’m pessimistic that it’s going to get me into F more than 5% of the time.
Not sure how much this affects your decision.