Matching the angle of the spoke hole to the angle that the spoke leaves the rim at means that we can greatly reduce the stress at the spoke head. Implementing this technology requires added design and manufacturing work but the result is a far more reliable wheel with less chance of breaking spokes.
This requires a lot of extra work, careful wheel design, manufacturing, and of course, careful testing, however, the result is a much stronger, more reliable wheel with much less chance of breaking a spoke or damaging the nipple. We think that you will agree that it is worth it.