I tend to disagree here.
The way the setup drifts and casts would seem to be quite a bit different from one setup to the other. With your peak mass being at the tip of the line, you should be able to throw a tighter loop and a more controlled cast (unless of course your flies are weighted heavier). This is what made me curious if anyone had tried it and what their experiences were.

IMHO, dead drifting flies is a very effective technique for fishing fast or slow water depending on how the fish are feeding. With nymphs being such a large part of a trout or steelhead's diet (when inland), its not a mystery why it can be productive.
Don't really see the comparison to a lure.
I guess it boils down to a personal preference as what one wants to fish with, and what one views as proper etiquette.
-Paul