It turns out that I actually built that last wheel the right way. I found another MA-3 rim and compared the drilling to the that on the rim that I used. Surprise! I did it correctly. I was not an idiot.
Then I found a Jobst Brandt post about reusing a hub. According to the guru of wheelbuilding, I'm an idiot again. Getting leading and trailing spokes reversed (which I didn't) is a minor problem compared to getting them oriented differently than they were originally (which I did). So, I'm an idiot again:
From: Jobst Brandt
Date: Wed, Aug 23 2000 12:00 am
Art Harris writes:
I'm contemplating building up a new rear wheel (new spokes/new rim) with my existing Ultegra freehub. . . Does it matter whether the spokes are oriented the same way in the spoke holes of the hub (i.e., leading and trailing spokes)?
Yes. Deformation of spoke holes is usually significant and a second pattern of metal flow of this magnitude can tear out flange sections with sufficient use. I have a couple of Campagnolo Record hubs with just such failures lying in my broken parts collection. Such failures are also not warranted if there is evidence of two spoke patterns.
I probably used the bloody thing long enough to worry about "deformation of spoke holes." So, I'll need to rebuild it again.
Gerty will love this.