Wheelbuilding / Wheel Building / Wheel build help

Do I make a fool out of myself selecting the track nut version, since the drag of a nut seem a lot more, than the smooth allen key finisher? (I know the aero benefits of such a low-cost wheel isn't anything to brag about in the first place, but I don't want to look too stupid when it's finished by neglecting a substantial drag-factor if I have the chance to avoid it). Lots of love.

The stock Novatec Allen-Key screws and washers aren't much smaller than track nuts, although getting the axle with tapped ends does allow you to use a nice low-profile countersunk screw and washer set. Even with different screws and washers, you're only looking at about 0.1s per kilometre, and while that is forever in an Elite level 1km TT, you wouldn't be starting with a wire spoked wheel if it was that important :-)