Taping or using rosin for the bridge:
Those I know who used tape swear there's no difference in sound or tone quality.
Those I know who used tape also played more along the lines of Chet Atkins. They picked and were light on the whammy.

Then there's the people like me who pluck rather hard, "bang" out chords and use the crap out of the whammy. I'm a HUGE fan of rockabilly and Psychobilly and anyone who knows Psychobilly knows they tend to not be a gentlemen player.

I always pinned my bridges for these reasons. I really think it's depends on ones playing style.

And on a side note: I have like 50 pics from when I saw the Rev. I'd love to share them but not sure how!!! (None of me talking to him. I wasn't about to ask him if I could take a selfie...hehehe)