As a sideline...
Remember, by switching and losing your, currently downgraded status, will leave you without status in the next measuring period and that will further degrade what you can get from your accumulated "banked" miles.
You might want to consider this as part of your analysis. Pick a "partner", if one available? Use up your current mileage for a trip, if you plat. level helps you any.
Remember, I fear retaliation in saying, all the airlnes are the same when it comes to ticking someone off eventurally. Todays too pricy, too poor a service, fails to respond, etc, is next times best. The grass is often greaner "in some seasons" somewhere else.