A tapered nut, in a tapered hole, forces an "exact fit". Tolerances would never allow 6 or 8 tapers to all seat. Therefore not all are perfectly seated even if a tightening pattern is followed. There will be a few nuts that center the wheel to the centerline of rotation of axle. That will have it's own tolerances. There will be a few nuts partly in the taper and mostly just clamp........... but the system is suffice.
It is impossible to have the load carried by tapered nuts AND a tight fit hub. Tolerances will not allow that. The wheel center hole has to have clearance to the hub to allow the wheel to move/seek the taper of the nuts....or the studs have to have clearance in the wheel holes to allow a tight hub fit.
As you know, it has been said, that hub centered is better for load strength but it may allow wheel to turn and apply a shear load to untapered studs........... but the system is suffice.
You can play around all you want, you can't beat the tolerance Gods.
Agree with Grigg.
I also say, you are fixing a problem that does not exist. Either system is strong. The number of studs and the size has been designed/engineered to probably a 2.5X safety factor. Not to worry. What is this daily driver?
