A couple of wing drivers in recent years have taken off the crutch and been successful. Haud, Smith jr, Kerr, and D Smith come to me off the top of my head.

Danny Smith got his start with non wings back when the Indiana tracks all ran w/o a wing...He was the Lawrenceburg track champion in 1976 (think that was the year) at the ripe old age of 16.

Tim Wolffrum aka Cowboy