Thank you all for your input so far!
I have decided to return the knife and will update here when I actually select the replacement. I had a chance to handle a couple new lock backs (CRKT and Leatherman) yesterday and, if the Gerber operated like them, this discussion wouldn't be happening
. The pressure difference to disengage the lock between those models and the one I actually bought was night and day.
Also, for those interested, here's a little more background info. This will actually be his second knife, he's had a SAK for the last couple years. He's used the knife responsibly, though he did have one minor, self-inflicted injury on his first camping trip with it. But I figure that's kind of like getting your first burn from the campfire, a worthwhile learning experience as long as it's relatively minor
.
So this is largely a case of wanting something new and different (though, admittedly, his SAK has been having some problems). All he really asked for was a new pocket knife and, after some discussion and looking at some of the available products, he asked if he could have a single blade, "old style" knife.
I actually added the lock to the requirements simply because if I was to buy a single blade pocket knife, I'd get a lock. That said, my urban EDC doesn't lock, so its not like I'm against non-locking blades in practise so I may rethink this and look more at the non-locking alternatives.
If all goes to plan we'll head out tonight to take a look, and this time a feel, at the options.
p.s. GeoEarthSensei, love the heirloom idea, too bad I didn't come across it a couple years ago!