I have the non-Technika version of this lens and it's performed wonderfully, even with two rather sizable piece of solid black dust inside the rear element.
As far as I've been told the Technika version is manufactured exactly the same, just undergoes further testing before it can be labeled as such.
Basically it's just a way of ensuring you're getting a good specimen of this lens.
There seems to be a rumour that the Linhof "select" lenses are better than the average lens. Apparently Linhof test each and every one that goes with their cameras to make sure that they pass muster. I guess that means that you have a good 'un!
Tony