Originally Posted by seely

This was touched on above, but figured I'd go into it a little more. As the wheel is being trued, the bladed spoke must be held in place at the "blade" with a slotted tool to prevent the spoke from twisting while turning the nip. If the spoke is twisted, it can seem like the wheel is true in the stand but the spoke will "unwind" a bit as you're riding. It can get bad to the point where the spoke will actually have a few full spirals permanently twisted into it. We see this on wheels we service from pretty high-end shops here in the US, and I imagine that in the DR bladed spokes are quite uncommon, so the techs there may not know to hold the spoke while truing. In a pinch, an adjustable wrench works well to hold the spoke. The closer you can hold the spoke to the nip, the better.