Ummm, ok, but I don't get you....or get how sarcasm comes through in text. You sound like you were serious and your post above this still makes it sound like certain insurance companies will not cover you in a emergency (not sure in a pro racing setting however). I am a health insurance expert so was just trying to help out
And yes, any secondary insurance is going to pick up what the first one doesn't cover (maybe not all but most.) Hell you can even get a third insurance to really make sure....and this does not have to be a company like Aflac; any insurance company (like UHC, BCBS, Aetna, etc) offers secondary insurance as long as you pay for it (or get it through your spouse).