I used the wiki procedure, but encountered two difficulties.
The adjustment knobs are hard to grip and turn with precise control. I solved that with this tramming wrench, but there are others that you can print. The wrench gives me more leverage, a larger surface to grip, and allows better positioning of my fingers for finer control. It is very easy to make tiny adjustments.
The second problem is determining the exact point when the nozzle is “just touching” the printing surface. My solution is to shine a bright light (LED flashlight) behind the nozzle, then get down so my eye is in the same plane as the plate so I can view the light shining straight through the nozzle-bed gap. I turn the wrench until the light just disappears.
For me, determining the precise instant when the light winks out is more consistent than relying on my ability to judge the friction force on a feeler gauge.
Edit: I suppose you could combine the light gap with a feeler gauge? Maybe next time…