Originally Posted by Metzinger
I made one out of an old fork. Cut the one leg off and drilled a hole for a feeler screw in the other. Clamped steerer in vice.
Not near as good as a professional Park two legged stand with centering caliper. But plenty good for home use.
Your stand (MEC?) should do fine. All you need to do for accurate centering is to flip the wheel around.
I use a fork for truing as well, but I left both legs. I lke to be able to push the rim sideways to relieve spoke tension when I'm tightening spokes. I wouldn't use a one sided stand for that reason.
As far as flipping the wheel to center, I found this on the Park website:
"Note: While the TS-2 is designed to provide automatic dishing of the wheel, imperfections in the shape or condition of the axle or locknuts can affect the dish reading, as the imperfection is magnified significantly by the distance from the hub to the rim, where the actual reading is taken. Because of this, for precision work, a dishing tool such as the Park Tool WAG-1 or WAG-3 should be used to verify final adjustments."
The best truing stand is the wooden one in Roger Musson's e-book. It's the simplest to set up, and it has the best indicators.