Anybody running 17" Cobra Bullit rims on a Duster
The OE Ford wheels I have (95 Cobra) use tapered seat lug lugs just like almost any other wheel. The only really funky lug nuts I'm familiar with are the ones used on my Honda - some sort of a ball seat arrangement that is spherical where it meets the wheel.
Now if you mean bulge seat like some of the wider Jeep lug nuts - basically a flared portion wider than the nut portion of the lug itself, then those are great IF they'll fit the wheel. There are lot of wheels that use fairly narrow "tuner" lugs that you can't fit a socket over, and those seem to work OK, but wouldn't be my first choice. For my Cobras, I'm using a 13/16" tapered seat lug that is a little over 1" long so the lugs show through the center caps.
Clair