Wow, glad some one finally explain what an eccentric pivot pin was. Learn something new every day.
I don't have anything technical to add other than I bought a plain edged ATS34 TiN coated Military when they first came out, and it plain sucked! And I am a Spyderco fan too...
Clip was too weak and would constantly loosen even after applying locktite. The black TiN coated developed stains and spots with in one days use. Lock up was pretty good, but the liner moved all the way across to the opposite liner. The G10 turned an off shade of brown and then absorbed the salt from my sweat, so it developed a frosty tinge to it.
The lock eventually loosened up to where it was not solid at all. The blade geometry is awesome in my opinion! Cut extremely well, and I liked the flat grind, and the ergonomics of the scales, overall good balance too.
When I finally returned CONUS, I sent it back to Spyderco in hopes of getting the problems rectified, as I had sent back numerous other Spydercos with great results. This bad boy took nearly two months to get back, the scales were the same, locktite was slathered around the clip, the lock was much better, and the blade was DULL, and I sent it sharp.
Gotta admit I was a little bummed, after having received new knives from Spyderco Customer service in the past. Was kind of hoping they would ship me a new series which had recently been released when I sent mine back.
Well, clip came loose again after two days, and the lock started slipping. Gave it away to a buddy.