Thanks for the detailed description. I actually live in Spain. Anything under 4 inches of blade length (not to confuse with EDGE LENGTH, which is usually shorter) non auto... is legal TO OWN. Unless there is a reasonable cause, you are not allowed to CARRY anything, at all, period!. This means that if you go climbing, camping, hiking, hunting, fishing, you are a construction worker and are actually working, etc... you will be fine. Otherwise you might get the knife confiscated to be retrieved once you pay whichever fine they apply to you.
However, I carry everyday a couple knives (a one hand opener, coincidentally today I carry a Code4) and a SAK in the backpack I use to carry the laptop back and forth to work. And I never got into any trouble. We don't get randomly searched often, so as long as you don't flash it arround and do stupid stuff with it, you will be fine. I have also gotten into buildings with metal detectors and bag scanners at the entrance (for work related stuff) and upon warning the security staff beforehand and leaving the "tools" in the backpak, I haven't gotten any trouble. I just recall one ocassion where the asked me to leave the Leatherman at the security check to pick it up later.
I also own a Spyderco Military, Police and REsilence, which are pretty close (or even a bit over) that 4" (100mm) of blade length limit.
The Talon and Matriarch, however... might be a tad difficult to justify a reasonable use for it if I am ever asked about it. I do own a Spyderco Spyderhawk (the latest orange model) but I only carry it when I am arroud ropes, boats, etc. Not the most utilitarian blade shape.
That's why the ProLite and/or Voyager models appeal more to me (also FRN or Grivory or whatever they use in the Voyager is going to be lighther).
How do you like and how do you maintain the serrations of the Cold Steel knives? Sharpmaker works fine for Spyderco and similar patterns but the Cold Steel ridges are much smaller.
Mikel