Why am I always stuck playing devil's advocate?
OK, before I give my story, let me start by saying that I think the 710 is a "new classic," on par with the AFCK. I saw a marked decline in their QC with the advent of the G-10 handled knives, but the 710/705 (and the 3500 on the auto front) have me convinced they're back on track.
But...
I've been concerned since I first saw the Axis-lock that pressure to one stud and not the other would set the post at an angle and cause it to bind. These fears were confirmed in a recent 705 Beth acquired (which we still love), which jams up about 1 in 10 openings. The locking bar gets stuck at a slight angle and the blade opens and closes freely, not locking or being held shut. It can be cleared manually and I bet it will improve with time, but there is no warning and one might easily not even notice that the lock wasn't engaged.
Probably a 1-in-1000 thing, right? Yeah, probably, but it does occur. Since folks get all upset about the unreliability and break0in period on liner-locks, I figured it's worth mentioning that the same can happen in the Axis.
My real concern with the Axis is a matter of long-term durability. The lock is operated by two omega springs - it only
needs one, but we see that uneven pressure might increase the risk of binding. These springs are stored in milled cavities under each scale. The cavities are narrow and the openings to them are small. Benchmade has thoughtfully added an extra opening to each on the inside of the knife, but this doesn't entirely fix my concern: that any dirt, grime, corrosive gunk, or other knife scuz that falls into the lock will accumulate in these cavities and cannot be completely cleaned out without
disassembling the knife.
Doesn't bother me too much, I disassemble and clean my Benchmades pretty regularly. But what about folks who respect Benchmade's warranty agreement? Their springs are now living in an accumulation of potentially corrosive crud. The springs are thin and to the best of my knowledge are spring-hardened steel, not exactly corrosion resistant. Only seems like a matter of time before they go...
This may be idle speculation, but time will tell. It's the sort of concern that will only bear out through years of field use; I doubt Benchmade would catch something like this in the usual knife tests of cutting performance and lock strength.
I dunno, I'm still impressed with the axis system, but it's something to think about. I can't stand to see a one-sided thread
-Drew