I am 13 and have fairly strong hands, and I recently bought a new CS Recon 1 from amazon. I have noticed that The Tri-Ad lock is VERY stiff. It leaves a large depression in my thumbs when I close it, but I often use to fingers to close the lockbar. I have a rather large collection of knives out of high quality brands like Kershaw, Sog, Spyderco, etc. I haven't had these problems with any other knife, I have been closing and opening it to 90 degrees to see if that will loosen it up. Did I just get a lemon, or is this normal?