Thanks for the suggestion!
But to be honest, in my homecountry I can carry whatever I want, and I like to have a lock on my folders.
And while I cross the border to Germany (with its restrictive knife-laws) quite frequently, most times that's high up in the mountains where I rarely meet people at all and never, ever a cop...
Other than that I am just seldom in Germany, and that in daytime and smaller towns. No one will ever search me then for a knife I am sure, and if it gets a bit more crowded I just don't carry it clipped, but buried deeper in my pocket.
I like the look of the UKPK, cause it reminds me of the Stretch. But additionally to the fact that I want a lock, I think a "smaller Stretch" would not work for me, since there is most likely not enough space on the actual handle for a good four finger grip. On a NON locking folder (if I wanted one) that would not bother me though, cause in that case it's a good idea to have a finger in the choil most times anyway.