Ha, I obviously know it was there, but the issue I had was when I dry-fitted the brake, I could not get enough tension for the brake to lift away from the rim. Once I'd fitted the brake to the frame snugly, adjusting the tension was easy.
Tri-Aligns are perhaps misunderstood brakes. They take a little patience to set up, but are very effective stoppers. Also I think are affected by lever choice. V brakes are mechanically superior though, and are better suited to my current terrain. I'm hanging on to the older brakes for when I swap back.