I am using the 65mm version of these:
M14x1.5 ACS Race Series Studs — Track-Studs.com
And these nuts:
Porsche PRO series nuts — Track-Studs.com
They don't stick out too far, and there is plenty of thread even if I wanted to run spacers within reason, but if I run my Carrera twist wheels, the rear have a pretty deep well for the lug nut and it is tough to start the nut by hand, if I had it to do over again I would get the 80 mm or even the 90 bullet nose:
M14x1.5 'Bullet Nose' race stud — Track-Studs.com
This is the wheel I'm talking about, have a pretty deep well in the wheel for the lug bolt/stud/nut, [edit: here is a picture of my rear wheels with the studs, see how deep they are in the wells? Plenty of thread engagement, but hard to start by hand.]
I love them, very easy to take wheels on and off this way.