I swear by Dent Wizards. I'm gonna try the technique on my wife's Volvo this weekend. If it works good for me bad for DW! By the way I have developed a new, much prettier door ding preventer. I'll post some pics over the weekend.
It attaches with one hand in seconds, will not scratch the finish and stayed on the car in 50 to 60 mph wind gusts we had here on Monday.

Pat