My feelings about the 940 aside, I have to say I've found Benchmade's (axis release) autos a bit disappointing. It's not a quality thing - the few I've had have been reliable - it's that, after using Microtech and Protech autos, the Benchmades' action is noticeably slower. Honestly, they open like their assisted knives... maybe a little slower, because they aren't getting getting the initial opening force from the thumbstuds.
At one point, I mentioned that here; and a few respondents said that they'd had similar experiences... but loosening the pivot improved the opening. I hemmed & hawed, a bit reluctant to screw with it; but finally decided to tweak it. Before I noticed any appreciable improvement, I induced blade play. Tightened it back up, just til the blade play was resolved; and, for some time after, found that the knife failed to open on the first attempt. All I had to do was press the blade down & release it again, then it was fine for the rest of the day. Next day, same thing. I tried adjusting the pivot screw without improvement. I have no idea why; but it did eventually sort itself out, and it hasn't been a problem since. (Maybe a little thread sealant dislodged with the initial adjustment, and was gumming things up?)
I'm not anti-benchmade, by any stretch - I still carry/use my Presidio (the one referenced above), probably more frequently than any other autos.