Wow, that didn't take long. Got my OD-2 today, and so far I'm digging it. From now on this thing stays in my pocket. It is pretty small (you can ever really grasp the size and proportions of a knife until you physically hold it right?), but should be the perfect size for EDC. Centering and finish were all good and I barely had to adjust the pivot screw. Grind could be better, but it's adequate for this type of knife.
I must say the "overdrive" system really works. Every time, the little blade snaps open as fast as an assisted. It does require a bit more force than expected though. It is not a smooth, fluid opening like the Chill, but more of a sudden burst, like the blade is saying "don't wanna come out.... don't wanna come out... HA! Tricked you!". The flipper stud thing almost feels more like a button than a traditional flipper like the Chill. On those knives, the flipper just sort of disengages the detent and gets the blade going, requiring you to sometimes flick the blade out the rest of the way. But not on the OD-2. The detent is so strong for the little blade that, when it finally does give, it affirmatively *SNAPS* open straight to lockup (which is tight, I might add). It's an interesting opening system, and I like it a lot so far.
When I was comparing the OD-2 and Chill side by side, I noticed the Chill's handle is actually thinner, by 1.5 - 2 mm. Personally I think the OD-2's handle scales would benefit if they were about 1 mm thinner, but that would probably compromise comfort and ease of opening for people with thicker fingers. I actually find that I prefer the handle style and ergos on the Chill, but I rarely carried it because it was a tad too long. Had the Chill been a bit shorter, with a 2.5 inch blade, I would have kept it instead of giving it to a friend. Therefore the OD-2 is closer to my ideal carrying knife. All in all very pleased with it so far. Now to just get rid of that pesky bead blast finish - anyone have any tips here?
Here's a poor quality comparison pic: