Yeah I'm absurdly good at not speaking in my native Appalachian accent, opting instead for a sort of "generic midwest." Unless I'm tawking to ma day-ed-dy, n' then all bets is awf."
My sister and I cover so well and so often that none of her four children who are literally being raised in Charleston, West Virginia has even a trace of our accent.
This 100% was the entire goal of the Citizens United ruling.