Originally Posted by DannoXYZ

Why would radial spokes have more tension? Wouldn't that pull the rim over to that side and mess up the centering between the axle-nuts? Imagine unlacing just the non-drive side half of an already built-up wheel and relacing it radially. Wouldn't the tension on the left side have to be exactly the same as before in order to centre the rim?

The problem with hub-flanges breaking with radial isn't the actual tension it's the direction that the tension is being applied.

EDIT: Or did you mean that there's higher tension on non-drive side because you're reduced spoke-count by 1/2? That would indeed require more tension on the smaller number of spokes on the left side. But if Tim was going to build his wheel with 16-spokes on the left side, then the tension would be the same as with 16 crossed spokes.